<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f6cab-2d5d-76be-b7b7-18689df8baae,g:afb7a472-a960-41d0-9a16-c09a771afda6-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="simple" xlink:href="nvve-20260630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019f6cab-306b-76ed-8543-eaa49acee1d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019f6cab-306b-7bf0-b96b-bdd5cb1f9525" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-306b-76ed-8543-eaa49acee1d3" xlink:to="loc_us-gaap_StatementTable_019f6cab-306b-7bf0-b96b-bdd5cb1f9525" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-306b-7db6-aa68-9e4b1f5c9b39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f6cab-306b-7bf0-b96b-bdd5cb1f9525" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-306b-7db6-aa68-9e4b1f5c9b39" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-7db6-aa68-9e4b1f5c9b39_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-306b-7db6-aa68-9e4b1f5c9b39" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-7db6-aa68-9e4b1f5c9b39_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-78c5-96ce-1aa861842272" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-306b-7db6-aa68-9e4b1f5c9b39" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-78c5-96ce-1aa861842272" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-306b-70d0-978c-8c3881dbfe2e" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-78c5-96ce-1aa861842272" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-306b-70d0-978c-8c3881dbfe2e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredClassAMember_019f6cab-306b-78ba-b60d-1c93cfe1e5d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-78c5-96ce-1aa861842272" xlink:to="loc_us-gaap_PreferredClassAMember_019f6cab-306b-78ba-b60d-1c93cfe1e5d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_JKissMember_019f6cab-306b-77cf-85d8-f437ea319cdb" xlink:href="nvve-20260630.xsd#nvve_JKissMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-78c5-96ce-1aa861842272" xlink:to="loc_nvve_JKissMember_019f6cab-306b-77cf-85d8-f437ea319cdb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019f6cab-306b-7fad-8b27-bda337915b45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-78c5-96ce-1aa861842272" xlink:to="loc_us-gaap_CommonClassBMember_019f6cab-306b-7fad-8b27-bda337915b45" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CumulativePreferredStockMember_019f6cab-306b-7692-b33d-cbd896866616" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CumulativePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-306b-78c5-96ce-1aa861842272" xlink:to="loc_us-gaap_CumulativePreferredStockMember_019f6cab-306b-7692-b33d-cbd896866616" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-306b-70ab-90b9-cf2f6e5c86d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f6cab-306b-7bf0-b96b-bdd5cb1f9525" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-306b-70ab-90b9-cf2f6e5c86d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019f6cab-306b-70ab-90b9-cf2f6e5c86d1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-306b-70ab-90b9-cf2f6e5c86d1" xlink:to="loc_us-gaap_RelatedPartyDomain_019f6cab-306b-70ab-90b9-cf2f6e5c86d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019f6cab-306b-7064-87b6-3c647d159378" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-306b-70ab-90b9-cf2f6e5c86d1" xlink:to="loc_us-gaap_RelatedPartyDomain_019f6cab-306b-7064-87b6-3c647d159378" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonrelatedPartyMember_019fa824-422a-7474-98c2-d805ceb7934c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonrelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019f6cab-306b-7064-87b6-3c647d159378" xlink:to="loc_us-gaap_NonrelatedPartyMember_019fa824-422a-7474-98c2-d805ceb7934c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019f6cab-306b-71d7-ac0e-a7f1a33216b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019f6cab-306b-7064-87b6-3c647d159378" xlink:to="loc_us-gaap_RelatedPartyMember_019f6cab-306b-71d7-ac0e-a7f1a33216b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-306b-76ed-8543-eaa49acee1d3" xlink:to="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f6cab-306b-7d94-8c0d-ef4791f7ccdb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f6cab-306b-7d94-8c0d-ef4791f7ccdb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_019f6cab-306b-7147-9f34-60a62030bb9b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_RestrictedCashCurrent_019f6cab-306b-7147-9f34-60a62030bb9b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019f6cab-306b-7b76-9341-8810b308a946" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019f6cab-306b-7b76-9341-8810b308a946" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019f6cab-306b-7dc9-acf6-3771054ea269" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_InventoryNet_019f6cab-306b-7dc9-acf6-3771054ea269" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_019f6cab-306b-7579-aa42-95356b9e58e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_019f6cab-306b-7579-aa42-95356b9e58e7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCostsCurrent_019f6cab-306b-7094-afea-b4e7870c2362" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredCostsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_DeferredCostsCurrent_019f6cab-306b-7094-afea-b4e7870c2362" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_019f6cab-306b-763d-8f17-64a40724e161" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherReceivablesNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_019f6cab-306b-763d-8f17-64a40724e161" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_019f6cab-306b-7daa-bea0-2b4e8d110668" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_OtherAssetsCurrent_019f6cab-306b-7daa-bea0-2b4e8d110668" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019f6cab-306b-78d4-a257-9c4ce55aeea4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019f6cab-306b-75cb-b4ee-41e07fad7322" xlink:to="loc_us-gaap_AssetsCurrent_019f6cab-306b-78d4-a257-9c4ce55aeea4" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019f6cab-306b-75ca-be3e-afefac2174f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019f6cab-306b-75ca-be3e-afefac2174f4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f6cab-306b-7119-b3f2-0dd011f4123a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f6cab-306b-7119-b3f2-0dd011f4123a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019f6cab-306b-7567-8a09-aae6539b851d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_Goodwill_019f6cab-306b-7567-8a09-aae6539b851d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019f6cab-306b-79eb-9b18-2c74541521b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentInLeaseNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019f6cab-306b-79eb-9b18-2c74541521b8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019f6cab-306b-7d9f-b00b-bd6b344bd5be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019f6cab-306b-7d9f-b00b-bd6b344bd5be" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCosts_019f6cab-306b-754c-9ac0-5c4a50b2ad11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_DeferredCosts_019f6cab-306b-754c-9ac0-5c4a50b2ad11" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAssetsNoncurrent_019f6cab-306b-75e2-8f02-88f58497b1d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepositsAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_DepositsAssetsNoncurrent_019f6cab-306b-75e2-8f02-88f58497b1d1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019f6cab-306b-725b-b6a4-e364bc0bb0af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-306b-7254-81e3-97f3598724a3" xlink:to="loc_us-gaap_Assets_019f6cab-306b-725b-b6a4-e364bc0bb0af" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-306b-76ed-8543-eaa49acee1d3" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019f6cab-306b-79a0-a8ed-2ad18bb17994" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_AccountsPayableCurrent_019f6cab-306b-79a0-a8ed-2ad18bb17994" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PayablesToCustomersCurrent_019fa825-a27a-7f9d-a69d-047c83be33d2" xlink:href="nvve-20260630.xsd#nvve_PayablesToCustomersCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_nvve_PayablesToCustomersCurrent_019fa825-a27a-7f9d-a69d-047c83be33d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_019f6cab-306b-720c-ab1b-b1b4ec9a4e9e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_019f6cab-306b-720c-ab1b-b1b4ec9a4e9e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019f6cab-306b-7b87-b393-d5afffa5dc90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019f6cab-306b-7b87-b393-d5afffa5dc90" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_019f6cab-306b-73a4-ad05-c798ddee2e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_DebtCurrent_019f6cab-306b-73a4-ad05-c798ddee2e0d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleNotesPayableCurrent_019f6cab-306b-7325-a9ec-a90c24b39c0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleNotesPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_ConvertibleNotesPayableCurrent_019f6cab-306b-7325-a9ec-a90c24b39c0c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019f6cab-306b-71f3-b9ac-8e6b74faa6ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019f6cab-306b-71f3-b9ac-8e6b74faa6ec" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrent_019f6cab-306b-705d-9d6c-020f7cdfa6be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_DividendsPayableCurrent_019f6cab-306b-705d-9d6c-020f7cdfa6be" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_019f6cab-306b-7c8d-87e0-f95e048adec0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_019f6cab-306b-7c8d-87e0-f95e048adec0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CustomerDepositLiabilityCurrent_019f6cab-306b-7b82-971c-52f5a959382c" xlink:href="nvve-20260630.xsd#nvve_CustomerDepositLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_nvve_CustomerDepositLiabilityCurrent_019f6cab-306b-7b82-971c-52f5a959382c" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019f6cab-3108-70dc-aeb7-c59dd05afa4a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019f6cab-306b-7b2e-8882-774d7909c92c" xlink:to="loc_us-gaap_LiabilitiesCurrent_019f6cab-3108-70dc-aeb7-c59dd05afa4a" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019f6cab-3108-7566-ad38-4101c6f4c72a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019f6cab-3108-7566-ad38-4101c6f4c72a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenue_019f6cab-3108-7ebf-8b90-62e8cc4079e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_DeferredRevenue_019f6cab-3108-7ebf-8b90-62e8cc4079e6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_019f6cab-3108-7e1c-a98e-e1b613cf81b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_019f6cab-3108-7e1c-a98e-e1b613cf81b6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_019f6cab-3108-7c4e-a750-57af898c29e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_019f6cab-3108-7c4e-a750-57af898c29e3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019f6cab-3108-72b2-85df-34cde62210d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_Liabilities_019f6cab-3108-72b2-85df-34cde62210d3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019f6cab-3108-7d17-89dd-7467ab72faaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019f6cab-3108-7d17-89dd-7467ab72faaa" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3108-74cc-854e-c3f647ccb207" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3108-74cc-854e-c3f647ccb207" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-3108-789e-80dd-ddcc3be3277a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3108-74cc-854e-c3f647ccb207" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-3108-789e-80dd-ddcc3be3277a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019f6cab-306b-7609-b8bc-d26e98161f3c" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssuanceValue_019f6cab-3108-7fe3-8017-85b6cd936b29" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssuanceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssuanceValue_019f6cab-3108-7fe3-8017-85b6cd936b29" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitIssuanceValue_019f6cab-3108-74de-99e8-63e8df6b186c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitIssuanceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_CommonUnitIssuanceValue_019f6cab-3108-74de-99e8-63e8df6b186c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019f6cab-3108-7ca8-b952-934184c9c2d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_PreferredStockValue_019f6cab-3108-7ca8-b952-934184c9c2d9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019f6cab-3108-7ad0-a88a-babda82967db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_CommonStockValue_019f6cab-3108-7ad0-a88a-babda82967db" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonValue_019f6cab-3108-7caa-bf9b-d2b8e4374bb4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_TreasuryStockCommonValue_019f6cab-3108-7caa-bf9b-d2b8e4374bb4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019f6cab-3108-7336-b807-327c1fd44b72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019f6cab-3108-7336-b807-327c1fd44b72" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019f6cab-3108-7226-876a-2d62b520362e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019f6cab-3108-7226-876a-2d62b520362e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019f6cab-3108-7e89-903f-f6377741c7c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019f6cab-3108-7e89-903f-f6377741c7c6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019f6cab-3108-7ced-a300-fa4191133236" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_StockholdersEquity_019f6cab-3108-7ced-a300-fa4191133236" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019f6cab-3108-72a6-91bf-3a92a99e5fad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_MinorityInterest_019f6cab-3108-72a6-91bf-3a92a99e5fad" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f6cab-3108-71c6-b13e-c4238a0f9b20" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f6cab-3108-71c6-b13e-c4238a0f9b20" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019f6cab-3108-77fd-a15c-f4c2984a82c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3108-7142-b09e-243b654814c9" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_019f6cab-3108-77fd-a15c-f4c2984a82c2" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParentheticals" xlink:type="simple" xlink:href="nvve-20260630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParentheticals"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUnauditedParentheticals" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019f6cab-3109-742d-bb46-efdb5dd604f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019f6cab-3109-7e35-a1a1-b496ec8f5dba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-742d-bb46-efdb5dd604f0" xlink:to="loc_us-gaap_StatementTable_019f6cab-3109-7e35-a1a1-b496ec8f5dba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7806-b1ee-a45a5181982c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f6cab-3109-7e35-a1a1-b496ec8f5dba" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7806-b1ee-a45a5181982c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7806-b1ee-a45a5181982c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7806-b1ee-a45a5181982c" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7806-b1ee-a45a5181982c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7df9-ba24-50ae2b79c74a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7806-b1ee-a45a5181982c" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7df9-ba24-50ae2b79c74a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-3109-77fa-b4b4-608685e68b83" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7df9-ba24-50ae2b79c74a" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-3109-77fa-b4b4-608685e68b83" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredClassAMember_019f6cab-3109-76bb-a339-8ef2ee1bcd26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7df9-ba24-50ae2b79c74a" xlink:to="loc_us-gaap_PreferredClassAMember_019f6cab-3109-76bb-a339-8ef2ee1bcd26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_JKissMember_019f6cab-3109-7b4a-aedb-3d3bed9a50de" xlink:href="nvve-20260630.xsd#nvve_JKissMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7df9-ba24-50ae2b79c74a" xlink:to="loc_nvve_JKissMember_019f6cab-3109-7b4a-aedb-3d3bed9a50de" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019f6cab-3109-71ef-b056-197be1f4297c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7df9-ba24-50ae2b79c74a" xlink:to="loc_us-gaap_CommonClassBMember_019f6cab-3109-71ef-b056-197be1f4297c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CumulativePreferredStockMember_019f6cab-3109-7b15-b739-7f8298998e8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CumulativePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7df9-ba24-50ae2b79c74a" xlink:to="loc_us-gaap_CumulativePreferredStockMember_019f6cab-3109-7b15-b739-7f8298998e8b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3109-731f-9a39-f0a75eb4bb09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-742d-bb46-efdb5dd604f0" xlink:to="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3109-731f-9a39-f0a75eb4bb09" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_019f6cab-3109-71f2-b383-7ff1a7aeb7e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3109-731f-9a39-f0a75eb4bb09" xlink:to="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_019f6cab-3109-71f2-b383-7ff1a7aeb7e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesAuthorized_019f6cab-3109-768f-9940-d57d5d613849" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3109-731f-9a39-f0a75eb4bb09" xlink:to="loc_us-gaap_TemporaryEquitySharesAuthorized_019f6cab-3109-768f-9940-d57d5d613849" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesIssued_019f6cab-3109-7f58-9196-4fe2f0d9db34" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3109-731f-9a39-f0a75eb4bb09" xlink:to="loc_us-gaap_TemporaryEquitySharesIssued_019f6cab-3109-7f58-9196-4fe2f0d9db34" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-3109-73df-ae58-8da8e599c5d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3109-731f-9a39-f0a75eb4bb09" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-3109-73df-ae58-8da8e599c5d6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityLiquidationPreference_019f6cab-3109-7d51-a3f9-2f02e39be1b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityLiquidationPreference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityAbstract_019f6cab-3109-731f-9a39-f0a75eb4bb09" xlink:to="loc_us-gaap_TemporaryEquityLiquidationPreference_019f6cab-3109-7d51-a3f9-2f02e39be1b1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-742d-bb46-efdb5dd604f0" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare_019f6cab-3109-7a97-b862-24b36855d250" xlink:href="nvve-20260630.xsd#nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare_019f6cab-3109-7a97-b862-24b36855d250" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized_019f6cab-3109-7c8a-b989-64971d9c6428" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized_019f6cab-3109-7c8a-b989-64971d9c6428" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-3109-7d33-8bed-90a27d2df2b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-3109-7d33-8bed-90a27d2df2b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-3109-73fc-b9e2-92dacbc42bf2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-3109-73fc-b9e2-92dacbc42bf2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CommonUnitParOrStatedValuePerShare_019f6cab-3109-7a68-9331-592ae224e64a" xlink:href="nvve-20260630.xsd#nvve_CommonUnitParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_nvve_CommonUnitParOrStatedValuePerShare_019f6cab-3109-7a68-9331-592ae224e64a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitAuthorized_019f6cab-3109-70c3-a88f-fc2cf4519dbc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_CommonUnitAuthorized_019f6cab-3109-70c3-a88f-fc2cf4519dbc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitIssued_019f6cab-3109-7c54-b543-64868e7f729b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_CommonUnitIssued_019f6cab-3109-7c54-b543-64868e7f729b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitOutstanding_019f6cab-3109-7cf3-b0f3-cfb5c71bcb93" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_CommonUnitOutstanding_019f6cab-3109-7cf3-b0f3-cfb5c71bcb93" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019f6cab-3109-7dec-99e0-186e9b78be19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019f6cab-3109-7dec-99e0-186e9b78be19" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019f6cab-3109-7d19-803f-09e6ed5ee998" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019f6cab-3109-7d19-803f-09e6ed5ee998" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_019f6cab-3109-705d-aab2-6f59fb6e3b2e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_PreferredStockSharesIssued_019f6cab-3109-705d-aab2-6f59fb6e3b2e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019f6cab-3109-7172-96f9-fdb1e4ad149a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_019f6cab-3109-7172-96f9-fdb1e4ad149a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_019f6cab-3109-7804-bb21-0349c6e775a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockLiquidationPreferenceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_019f6cab-3109-7804-bb21-0349c6e775a8" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019f6cab-3109-75cd-8bf0-4b7607ee0704" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019f6cab-3109-75cd-8bf0-4b7607ee0704" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019f6cab-3109-70a0-8308-a65bd4c39ed1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019f6cab-3109-70a0-8308-a65bd4c39ed1" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019f6cab-3109-7b5b-96f3-0ba1d843157e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_CommonStockSharesIssued_019f6cab-3109-7b5b-96f3-0ba1d843157e" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019f6cab-3109-7ade-a6cf-7763a57de383" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019f6cab-3109-7ade-a6cf-7763a57de383" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019f6cab-3109-751c-a56b-74d9b5b8fb8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019f6cab-3109-7cf3-a6fb-24e7f77e6ea1" xlink:to="loc_us-gaap_TreasuryStockCommonShares_019f6cab-3109-751c-a56b-74d9b5b8fb8e" xlink:type="arc" order="18"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUnaudited" xlink:type="simple" xlink:href="nvve-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUnaudited"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019f6cab-3109-7dd0-9a5c-b7a39f18d44b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_StatementTable_019f6cab-3109-7dd0-9a5c-b7a39f18d44b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019f6cab-3109-7043-8584-423dc33dd1ed" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f6cab-3109-7dd0-9a5c-b7a39f18d44b" xlink:to="loc_srt_ProductOrServiceAxis_019f6cab-3109-7043-8584-423dc33dd1ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7043-8584-423dc33dd1ed_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019f6cab-3109-7043-8584-423dc33dd1ed" xlink:to="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7043-8584-423dc33dd1ed_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7e4f-b793-5a0cccb68fe1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019f6cab-3109-7043-8584-423dc33dd1ed" xlink:to="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7e4f-b793-5a0cccb68fe1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductMember_019f6cab-3109-7104-84f1-c9d1e38f86e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7e4f-b793-5a0cccb68fe1" xlink:to="loc_us-gaap_ProductMember_019f6cab-3109-7104-84f1-c9d1e38f86e4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceMember_019f6cab-3109-78c0-a631-2b2215a29e1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7e4f-b793-5a0cccb68fe1" xlink:to="loc_us-gaap_ServiceMember_019f6cab-3109-78c0-a631-2b2215a29e1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrantMember_019f6cab-3109-7bc0-a0eb-5204b63b8ac9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7e4f-b793-5a0cccb68fe1" xlink:to="loc_us-gaap_GrantMember_019f6cab-3109-7bc0-a0eb-5204b63b8ac9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_019f6cab-3109-7fcc-97d8-049ea731b92e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_RevenuesAbstract_019f6cab-3109-7fcc-97d8-049ea731b92e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-3109-7fb3-b329-a1246b60bd00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_019f6cab-3109-7fcc-97d8-049ea731b92e" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-3109-7fb3-b329-a1246b60bd00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_019f6cab-3109-7373-8255-2a0aba7fe321" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_OperatingExpensesAbstract_019f6cab-3109-7373-8255-2a0aba7fe321" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019f6cab-3109-7cf3-84b8-8ff4a4c910ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f6cab-3109-7373-8255-2a0aba7fe321" xlink:to="loc_us-gaap_CostOfRevenue_019f6cab-3109-7cf3-84b8-8ff4a4c910ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019f6cab-3109-726f-83c9-1be5c40dbf9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f6cab-3109-7373-8255-2a0aba7fe321" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019f6cab-3109-726f-83c9-1be5c40dbf9f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019f6cab-3109-7c9a-80f3-627413518d9d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f6cab-3109-7373-8255-2a0aba7fe321" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019f6cab-3109-7c9a-80f3-627413518d9d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019f6cab-3109-710c-be90-45e8c09ecbc3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019f6cab-3109-7373-8255-2a0aba7fe321" xlink:to="loc_us-gaap_CostsAndExpenses_019f6cab-3109-710c-be90-45e8c09ecbc3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019f6cab-3109-703c-9b6f-305281d8672d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_OperatingIncomeLoss_019f6cab-3109-703c-9b6f-305281d8672d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_019f6cab-3109-7c72-95b1-d4dfc210c568" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherIncomeAndExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_OtherIncomeAndExpensesAbstract_019f6cab-3109-7c72-95b1-d4dfc210c568" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019f6cab-3109-7f8b-87b8-3ad483672653" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_019f6cab-3109-7c72-95b1-d4dfc210c568" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019f6cab-3109-7f8b-87b8-3ad483672653" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ChangeInFairValueOfConvertibleNotes_019f6cab-3109-7604-a9de-ddbb0a2dcbfd" xlink:href="nvve-20260630.xsd#nvve_ChangeInFairValueOfConvertibleNotes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_019f6cab-3109-7c72-95b1-d4dfc210c568" xlink:to="loc_nvve_ChangeInFairValueOfConvertibleNotes_019f6cab-3109-7604-a9de-ddbb0a2dcbfd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FairValueAdjustmentOfWarrantsAndInvestmentRights_019f6cab-3109-78ff-9571-a7ed1089da13" xlink:href="nvve-20260630.xsd#nvve_FairValueAdjustmentOfWarrantsAndInvestmentRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_019f6cab-3109-7c72-95b1-d4dfc210c568" xlink:to="loc_nvve_FairValueAdjustmentOfWarrantsAndInvestmentRights_019f6cab-3109-78ff-9571-a7ed1089da13" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_019f6cab-3109-74b8-9c12-d008a8c80f73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_019f6cab-3109-7c72-95b1-d4dfc210c568" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_019f6cab-3109-74b8-9c12-d008a8c80f73" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019f6cab-3109-7120-846a-268aed24f248" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_019f6cab-3109-7c72-95b1-d4dfc210c568" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019f6cab-3109-7120-846a-268aed24f248" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossAttributableToParent_019f6cab-3109-7440-b741-0ce9da4c2237" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_IncomeLossAttributableToParent_019f6cab-3109-7440-b741-0ce9da4c2237" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019f6cab-3109-7d7a-8bbf-f3c93c9b47d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019f6cab-3109-7d7a-8bbf-f3c93c9b47d5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f6cab-3109-786f-a97d-ce258ee9beb9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_ProfitLoss_019f6cab-3109-786f-a97d-ce258ee9beb9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019f6cab-3109-7b6a-9bff-845ad511006f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019f6cab-3109-7b6a-9bff-845ad511006f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019f6cab-3109-7fdf-a4b9-ff6a44e382f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_NetIncomeLoss_019f6cab-3109-7fdf-a4b9-ff6a44e382f6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_019f6cab-3109-7168-b326-f8062def45e9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_019f6cab-3109-7168-b326-f8062def45e9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_019f6cab-3109-7a2d-8696-0031d352e4e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockAccretionOfRedemptionDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_019f6cab-3109-7a2d-8696-0031d352e4e2" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019f6cab-3109-7f76-ae94-95b95d93f835" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019f6cab-3109-7f76-ae94-95b95d93f835" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019f6cab-3109-76d5-91f5-94dae2dfdf97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_EarningsPerShareBasic_019f6cab-3109-76d5-91f5-94dae2dfdf97" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019f6cab-3109-7737-9eba-0dc6f106a02e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019f6cab-3109-7737-9eba-0dc6f106a02e" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f6cab-3109-7258-8267-3e6a342cb321" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f6cab-3109-7258-8267-3e6a342cb321" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019f6cab-3109-799f-a1fc-961780dab3cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7091-b8c5-425ea9a240ad" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019f6cab-3109-799f-a1fc-961780dab3cb" xlink:type="arc" order="15"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSDEFICITANDMEZZANINEEQUITY" xlink:type="simple" xlink:href="nvve-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSDEFICITANDMEZZANINEEQUITY"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSDEFICITANDMEZZANINEEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019f6cab-3109-750f-add7-9371ea31a35b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019f6cab-3109-7c2a-b269-2bb0788d8879" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-750f-add7-9371ea31a35b" xlink:to="loc_us-gaap_StatementTable_019f6cab-3109-7c2a-b269-2bb0788d8879" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7d6a-8308-71ac24ce8a75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f6cab-3109-7c2a-b269-2bb0788d8879" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7d6a-8308-71ac24ce8a75" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7d6a-8308-71ac24ce8a75_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7d6a-8308-71ac24ce8a75" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7d6a-8308-71ac24ce8a75_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7d6a-8308-71ac24ce8a75" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredClassAMember_019f6cab-3109-7b5e-956a-1f12ab3e2fcd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:to="loc_us-gaap_PreferredClassAMember_019f6cab-3109-7b5e-956a-1f12ab3e2fcd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_JKissMember_019f6cab-3109-7a65-8e03-99ebb407a658" xlink:href="nvve-20260630.xsd#nvve_JKissMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:to="loc_nvve_JKissMember_019f6cab-3109-7a65-8e03-99ebb407a658" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-3109-77d0-998c-54ce32ec11fc" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-3109-77d0-998c-54ce32ec11fc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019f6cab-3109-7b06-b428-4aacb7cba891" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:to="loc_us-gaap_CommonClassBMember_019f6cab-3109-7b06-b428-4aacb7cba891" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019fa860-7a24-719b-b0f8-700a531a719c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:to="loc_us-gaap_CommonStockMember_019fa860-7a24-719b-b0f8-700a531a719c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019fa89d-e211-793c-9f51-d5c212ad9806" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7459-b22d-583f2b1ce2d0" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019fa89d-e211-793c-9f51-d5c212ad9806" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-3109-7255-9846-214c723a9891" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f6cab-3109-7c2a-b269-2bb0788d8879" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-3109-7255-9846-214c723a9891" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7255-9846-214c723a9891_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-3109-7255-9846-214c723a9891" xlink:to="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7255-9846-214c723a9891_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-3109-7255-9846-214c723a9891" xlink:to="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MemberUnitsMember_019f6cab-3109-7cf9-9d6d-0ec6031d34a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MemberUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:to="loc_us-gaap_MemberUnitsMember_019f6cab-3109-7cf9-9d6d-0ec6031d34a6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019f6cab-3109-7f7b-ae15-b7f444389312" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:to="loc_us-gaap_CommonStockMember_019f6cab-3109-7f7b-ae15-b7f444389312" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_019f6cab-3109-7444-a153-51dba09bcb3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:to="loc_us-gaap_TreasuryStockCommonMember_019f6cab-3109-7444-a153-51dba09bcb3f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019f6cab-3109-7655-883c-18efc0e26dcd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019f6cab-3109-7655-883c-18efc0e26dcd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019f6cab-3109-7e15-85b9-9438f7bff3d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019f6cab-3109-7e15-85b9-9438f7bff3d4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019f6cab-3109-7fae-b962-7a1743996b04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:to="loc_us-gaap_RetainedEarningsMember_019f6cab-3109-7fae-b962-7a1743996b04" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019f6cab-3109-76d2-a011-1646aa5b7bdf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-3109-7dc5-8b01-8d2d7ea1f5a7" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019f6cab-3109-76d2-a011-1646aa5b7bdf" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-3109-7a51-b0cc-8c28d4c74a75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConversionOfStockByUniqueDescriptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019f6cab-3109-7c2a-b269-2bb0788d8879" xlink:to="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-3109-7a51-b0cc-8c28d4c74a75" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-3109-7a51-b0cc-8c28d4c74a75_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-3109-7a51-b0cc-8c28d4c74a75" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-3109-7a51-b0cc-8c28d4c74a75_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-3109-7342-86cd-47beae024d88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-3109-7a51-b0cc-8c28d4c74a75" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-3109-7342-86cd-47beae024d88" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ConversionOfConvertiblePreferredStockMember_019f6cab-3109-7692-80ce-d35174e8ff96" xlink:href="nvve-20260630.xsd#nvve_ConversionOfConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-3109-7342-86cd-47beae024d88" xlink:to="loc_nvve_ConversionOfConvertiblePreferredStockMember_019f6cab-3109-7692-80ce-d35174e8ff96" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ConversionOfConvertibleNotesMember_019f6cab-3109-7ccf-b02a-0e6cc9239387" xlink:href="nvve-20260630.xsd#nvve_ConversionOfConvertibleNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-3109-7342-86cd-47beae024d88" xlink:to="loc_nvve_ConversionOfConvertibleNotesMember_019f6cab-3109-7ccf-b02a-0e6cc9239387" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ConversionOfSeriesAPreferredStockIssuanceMember_019ff266-13b7-7b62-a787-e96e3d30fdcb" xlink:href="nvve-20260630.xsd#nvve_ConversionOfSeriesAPreferredStockIssuanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-3109-7342-86cd-47beae024d88" xlink:to="loc_nvve_ConversionOfSeriesAPreferredStockIssuanceMember_019ff266-13b7-7b62-a787-e96e3d30fdcb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInTemporaryEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-750f-add7-9371ea31a35b" xlink:to="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-3109-73cd-9958-886f10eab292" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-3109-73cd-9958-886f10eab292" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-3109-723f-9676-8c7bb9f9d578" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-3109-723f-9676-8c7bb9f9d578" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquityReclassOfPreferredStockShares_019f6cab-3109-7544-b2a1-360c76083fbc" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquityReclassOfPreferredStockShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_nvve_TemporaryEquityReclassOfPreferredStockShares_019f6cab-3109-7544-b2a1-360c76083fbc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquityReclassificationsToPermanentEquity_019f6cab-3109-76d1-aa01-b71e39012816" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquityReclassificationsToPermanentEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_nvve_TemporaryEquityReclassificationsToPermanentEquity_019f6cab-3109-76d1-aa01-b71e39012816" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues_019f6cab-3109-7e91-b06a-a2f469f9c26c" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_nvve_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues_019f6cab-3109-7e91-b06a-a2f469f9c26c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues_019f6cab-3109-7757-ba88-4aa902be58d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues_019f6cab-3109-7757-ba88-4aa902be58d8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquitySharesConversionOfConvertibleSecuritiesNetOfAccretion_019f6cab-3109-7c63-ad0a-f5dbdfa9a4be" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquitySharesConversionOfConvertibleSecuritiesNetOfAccretion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_nvve_TemporaryEquitySharesConversionOfConvertibleSecuritiesNetOfAccretion_019f6cab-3109-7c63-ad0a-f5dbdfa9a4be" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquityValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion_019f6cab-3109-7be3-9819-e85a1bd9bfce" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquityValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_019f6cab-3109-7da4-8dc0-96e266d36b75" xlink:to="loc_nvve_TemporaryEquityValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion_019f6cab-3109-7be3-9819-e85a1bd9bfce" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-3109-7d4c-b327-063df87be04e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-3109-7756-9b09-a64175bef483" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-750f-add7-9371ea31a35b" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-3109-745b-b0fd-bca7e34fadbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-3109-745b-b0fd-bca7e34fadbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f6cab-3109-723b-b0fd-abc39b500fcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f6cab-3109-723b-b0fd-abc39b500fcc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitOutstanding_019f6cab-3109-71e3-b3cf-63474cb70591" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_CommonUnitOutstanding_019f6cab-3109-71e3-b3cf-63474cb70591" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019f6cab-3109-73ad-ada9-9318a9235de7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019f6cab-3109-73ad-ada9-9318a9235de7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019f6cab-3109-7f69-8856-d49077d43394" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_TreasuryStockCommonShares_019f6cab-3109-7f69-8856-d49077d43394" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ReclassificationsOfTemporaryToPermanentEquityShares_019f6cab-3109-7fc8-a45b-a1b727552837" xlink:href="nvve-20260630.xsd#nvve_ReclassificationsOfTemporaryToPermanentEquityShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_nvve_ReclassificationsOfTemporaryToPermanentEquityShares_019f6cab-3109-7fc8-a45b-a1b727552837" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationsOfTemporaryToPermanentEquity_019f6cab-3109-75f4-9d8b-69e6f4358c7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReclassificationsOfTemporaryToPermanentEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_ReclassificationsOfTemporaryToPermanentEquity_019f6cab-3109-75f4-9d8b-69e6f4358c7e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_019fa84c-7b3e-7c18-82fd-8935cdae6ae8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_019fa84c-7b3e-7c18-82fd-8935cdae6ae8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019f6cab-3109-79ae-b264-98d5f52ac32c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019f6cab-3109-79ae-b264-98d5f52ac32c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019f6cab-3109-7907-bc9e-d9165ad9dce6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019f6cab-3109-7907-bc9e-d9165ad9dce6" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019f6cab-3109-7104-87af-49f662ee5ae3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019f6cab-3109-7104-87af-49f662ee5ae3" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_019f6cab-3109-7514-a289-0afff289108b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_019f6cab-3109-7514-a289-0afff289108b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion_019f6cab-3109-7bf5-98d3-45790f79c5ca" xlink:href="nvve-20260630.xsd#nvve_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_nvve_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion_019f6cab-3109-7bf5-98d3-45790f79c5ca" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockIssuedDuringPeriodSharesWarrantsExercised_019f6cab-3109-736b-8fca-cf5de944fc09" xlink:href="nvve-20260630.xsd#nvve_StockIssuedDuringPeriodSharesWarrantsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_nvve_StockIssuedDuringPeriodSharesWarrantsExercised_019f6cab-3109-736b-8fca-cf5de944fc09" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockIssuedDuringPeriodValueWarrantsExercised_019f6cab-3109-7302-9c01-19b827af7272" xlink:href="nvve-20260630.xsd#nvve_StockIssuedDuringPeriodValueWarrantsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_nvve_StockIssuedDuringPeriodValueWarrantsExercised_019f6cab-3109-7302-9c01-19b827af7272" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_019f6cab-3109-7a2d-a8bc-8ea6bedb1bbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_019f6cab-3109-7a2d-a8bc-8ea6bedb1bbd" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_019f7f42-8093-7d79-a083-ecc39db39f11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_019f7f42-8093-7d79-a083-ecc39db39f11" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockIssuedDuringPeriodSharesDirectOffering_019f6cab-3109-7b7b-be5a-d362683be0df" xlink:href="nvve-20260630.xsd#nvve_StockIssuedDuringPeriodSharesDirectOffering"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_nvve_StockIssuedDuringPeriodSharesDirectOffering_019f6cab-3109-7b7b-be5a-d362683be0df" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockIssuedDuringPeriodValueDirectOffering_019f6cab-3109-7431-8410-3007db2af040" xlink:href="nvve-20260630.xsd#nvve_StockIssuedDuringPeriodValueDirectOffering"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_nvve_StockIssuedDuringPeriodValueDirectOffering_019f6cab-3109-7431-8410-3007db2af040" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019f6cab-3109-74d0-86d8-9c1b667fb9a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019f6cab-3109-74d0-86d8-9c1b667fb9a4" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPreferredStock_019f6cab-3109-7cf7-ad18-727d2ee76fa8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsPreferredStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_DividendsPreferredStock_019f6cab-3109-7cf7-ad18-727d2ee76fa8" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f6cab-3109-7519-ad16-4454654f2e4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019f6cab-3109-73c5-8b64-988794cb1817" xlink:to="loc_us-gaap_ProfitLoss_019f6cab-3109-7519-ad16-4454654f2e4f" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-3109-7f3e-9a03-b009c630222c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f6cab-3109-7c1a-a01b-21c553e22309" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitOutstanding_019f6cab-3109-7ab5-bf48-bcf99c6a5f63" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019f6cab-3109-7386-8137-3d6c6a6d8d5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_019f6cab-3109-755c-b8e5-dcb744230cfe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TreasuryStockCommonShares"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/OrganizationandDescriptionofBusinessDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#OrganizationandDescriptionofBusinessDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/OrganizationandDescriptionofBusinessDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f6cab-3109-7289-80b9-ad4f56cb72e6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:to="loc_srt_RangeAxis_019f6cab-3109-7289-80b9-ad4f56cb72e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-3109-7289-80b9-ad4f56cb72e6_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019f6cab-3109-7289-80b9-ad4f56cb72e6" xlink:to="loc_srt_RangeMember_019f6cab-3109-7289-80b9-ad4f56cb72e6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-3109-7ced-83c2-cb4587d12428" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019f6cab-3109-7289-80b9-ad4f56cb72e6" xlink:to="loc_srt_RangeMember_019f6cab-3109-7ced-83c2-cb4587d12428" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019fdbc0-96b1-7472-98db-1f9969a0de6a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-3109-7ced-83c2-cb4587d12428" xlink:to="loc_srt_MinimumMember_019fdbc0-96b1-7472-98db-1f9969a0de6a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f6cab-3109-7be2-bb5e-f855696feed4" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-3109-7ced-83c2-cb4587d12428" xlink:to="loc_srt_MaximumMember_019f6cab-3109-7be2-bb5e-f855696feed4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019f6cab-3109-77a9-8fa3-98a3a3e01f0e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:to="loc_dei_LegalEntityAxis_019f6cab-3109-77a9-8fa3-98a3a3e01f0e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f6cab-3109-77a9-8fa3-98a3a3e01f0e_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019f6cab-3109-77a9-8fa3-98a3a3e01f0e" xlink:to="loc_dei_EntityDomain_019f6cab-3109-77a9-8fa3-98a3a3e01f0e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019f6cab-3109-77a9-8fa3-98a3a3e01f0e" xlink:to="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AggregationV2GLLCMember_019ff27b-2afb-777b-8dab-b61a0e8834ec" xlink:href="nvve-20260630.xsd#nvve_AggregationV2GLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:to="loc_nvve_AggregationV2GLLCMember_019ff27b-2afb-777b-8dab-b61a0e8834ec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveCorpMember_019f6cab-3109-7792-aa4b-d96101415109" xlink:href="nvve-20260630.xsd#nvve_NuvveCorpMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:to="loc_nvve_NuvveCorpMember_019f6cab-3109-7792-aa4b-d96101415109" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveMember_019f6cab-3109-77a6-82fc-52d65e811cc2" xlink:href="nvve-20260630.xsd#nvve_NuvveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:to="loc_nvve_NuvveMember_019f6cab-3109-77a6-82fc-52d65e811cc2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_WISEEVLLCMember_019f6cab-3109-73d3-98b2-50216958833a" xlink:href="nvve-20260630.xsd#nvve_WISEEVLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:to="loc_nvve_WISEEVLLCMember_019f6cab-3109-73d3-98b2-50216958833a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FermataEnergyIILLCPreferredMembersMember_019f6cab-3109-7e34-878f-16fdfade9968" xlink:href="nvve-20260630.xsd#nvve_FermataEnergyIILLCPreferredMembersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:to="loc_nvve_FermataEnergyIILLCPreferredMembersMember_019f6cab-3109-7e34-878f-16fdfade9968" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveNewMexicoLLCMember_019f6cab-3109-7bd1-948c-333e261722c5" xlink:href="nvve-20260630.xsd#nvve_NuvveNewMexicoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-3109-7283-a5f3-4b14688e02bd" xlink:to="loc_nvve_NuvveNewMexicoLLCMember_019f6cab-3109-7bd1-948c-333e261722c5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-3109-7159-aaf3-d6ef30342f3e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-3109-7159-aaf3-d6ef30342f3e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7159-aaf3-d6ef30342f3e_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-3109-7159-aaf3-d6ef30342f3e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7159-aaf3-d6ef30342f3e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7736-a575-e81f9cda0bfe" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-3109-7159-aaf3-d6ef30342f3e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7736-a575-e81f9cda0bfe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AggregationV2GLLCMember_019ff277-37de-725f-87b5-cf9dd1a881af" xlink:href="nvve-20260630.xsd#nvve_AggregationV2GLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7736-a575-e81f9cda0bfe" xlink:to="loc_nvve_AggregationV2GLLCMember_019ff277-37de-725f-87b5-cf9dd1a881af" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CamerEyeMember_019f6cab-3109-732b-9e59-4b663dd38a4b" xlink:href="nvve-20260630.xsd#nvve_CamerEyeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7736-a575-e81f9cda0bfe" xlink:to="loc_nvve_CamerEyeMember_019f6cab-3109-732b-9e59-4b663dd38a4b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DeepImpactMember_019f6cab-3109-7435-aca7-cd68441e5e57" xlink:href="nvve-20260630.xsd#nvve_DeepImpactMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7736-a575-e81f9cda0bfe" xlink:to="loc_nvve_DeepImpactMember_019f6cab-3109-7435-aca7-cd68441e5e57" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FermataEnergyIILLCMember_019f6cab-3109-79d5-8704-e399313dda5e" xlink:href="nvve-20260630.xsd#nvve_FermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-3109-7736-a575-e81f9cda0bfe" xlink:to="loc_nvve_FermataEnergyIILLCMember_019f6cab-3109-79d5-8704-e399313dda5e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7606-b5ad-44443e168f98" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7606-b5ad-44443e168f98" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7606-b5ad-44443e168f98_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7606-b5ad-44443e168f98" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7606-b5ad-44443e168f98_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7ea2-ac54-1145321292e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-3109-7606-b5ad-44443e168f98" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7ea2-ac54-1145321292e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredClassAMember_019f6cab-3109-750a-8399-352bc06473c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7ea2-ac54-1145321292e6" xlink:to="loc_us-gaap_PreferredClassAMember_019f6cab-3109-750a-8399-352bc06473c4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019f6cab-3109-7e47-93fd-c46b1fb690c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-3109-7ea2-ac54-1145321292e6" xlink:to="loc_us-gaap_CommonClassBMember_019f6cab-3109-7e47-93fd-c46b1fb690c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-3109-71c4-9514-9a2a6303b76c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-3109-71c4-9514-9a2a6303b76c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-3109-71c4-9514-9a2a6303b76c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-3109-71c4-9514-9a2a6303b76c" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-3109-71c4-9514-9a2a6303b76c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-3109-7300-8bc8-1ec9806d8672" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-3109-71c4-9514-9a2a6303b76c" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-3109-7300-8bc8-1ec9806d8672" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019f6cab-3109-78ad-a2d4-09d8082baaa3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-3109-7300-8bc8-1ec9806d8672" xlink:to="loc_us-gaap_SubsequentEventMember_019f6cab-3109-78ad-a2d4-09d8082baaa3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019ff27a-cc34-73a8-8b12-292be2ae2fbb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetTable_019f6cab-3109-7242-86bc-1a5ea29a03b3" xlink:to="loc_srt_OwnershipAxis_019ff27a-cc34-73a8-8b12-292be2ae2fbb" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019ff27a-cc34-73a8-8b12-292be2ae2fbb_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019ff27a-cc34-73a8-8b12-292be2ae2fbb" xlink:to="loc_srt_OwnershipDomain_019ff27a-cc34-73a8-8b12-292be2ae2fbb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019ff27a-cc34-7a6b-a1f4-16bb9a321e17" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019ff27a-cc34-73a8-8b12-292be2ae2fbb" xlink:to="loc_srt_OwnershipDomain_019ff27a-cc34-7a6b-a1f4-16bb9a321e17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveJapanMember_019ff27a-ff4e-7caa-ad7c-54fe68fd5ad3" xlink:href="nvve-20260630.xsd#nvve_NuvveJapanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019ff27a-cc34-7a6b-a1f4-16bb9a321e17" xlink:to="loc_nvve_NuvveJapanMember_019ff27a-ff4e-7caa-ad7c-54fe68fd5ad3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockholdersEquityNoteProposedStockSplitConversionRatio_019f6cab-3109-7fd9-81c0-e9c620ad4c43" xlink:href="nvve-20260630.xsd#nvve_StockholdersEquityNoteProposedStockSplitConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_nvve_StockholdersEquityNoteProposedStockSplitConversionRatio_019f6cab-3109-7fd9-81c0-e9c620ad4c43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019f6cab-3109-7259-961d-10738332687c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019f6cab-3109-7259-961d-10738332687c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NumberOfWhollyOwnedSubsidiaries_019f6cab-3109-7c94-b289-a3a2728ce71b" xlink:href="nvve-20260630.xsd#nvve_NumberOfWhollyOwnedSubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_nvve_NumberOfWhollyOwnedSubsidiaries_019f6cab-3109-7c94-b289-a3a2728ce71b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_019ff27a-6903-7d10-915f-1577f913efe3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_019ff27a-6903-7d10-915f-1577f913efe3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019f6cab-3109-7ed8-be27-a702fdaa235d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019f6cab-3109-7ed8-be27-a702fdaa235d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_019f6cab-3109-757e-8068-96570d14d23b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_019f6cab-3109-757e-8068-96570d14d23b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_EquityInvestmentMembershipUnitsAcquired_019f6cab-3109-7f1b-a66b-d1fd277590ef" xlink:href="nvve-20260630.xsd#nvve_EquityInvestmentMembershipUnitsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_nvve_EquityInvestmentMembershipUnitsAcquired_019f6cab-3109-7f1b-a66b-d1fd277590ef" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CommonUnitAnnualPreferredReturnPercentage_019f6cab-3109-77e8-a175-d72cb3121ad8" xlink:href="nvve-20260630.xsd#nvve_CommonUnitAnnualPreferredReturnPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_nvve_CommonUnitAnnualPreferredReturnPercentage_019f6cab-3109-77e8-a175-d72cb3121ad8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NumberOfSubscribedMembers_019f6cab-3109-7cb8-b47a-e4e3a16f678e" xlink:href="nvve-20260630.xsd#nvve_NumberOfSubscribedMembers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_nvve_NumberOfSubscribedMembers_019f6cab-3109-7cb8-b47a-e4e3a16f678e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-3109-7a75-bd05-92d90f64fe72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-3109-7a75-bd05-92d90f64fe72" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_019f6cab-3109-77af-ba72-5e0bd6ab0d84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems_019f6cab-3109-7870-ba23-7e86d375a65a" xlink:to="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_019f6cab-3109-77af-ba72-5e0bd6ab0d84" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#SummaryofSignificantAccountingPoliciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:href="nvve-20260630.xsd#nvve_SummaryOfSignificantAccountingPoliciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SummaryOfSignificantAccountingPoliciesTable_019f6cab-3109-7ff3-854e-a1a12f60d562" xlink:href="nvve-20260630.xsd#nvve_SummaryOfSignificantAccountingPoliciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_nvve_SummaryOfSignificantAccountingPoliciesTable_019f6cab-3109-7ff3-854e-a1a12f60d562" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-7da6-b09e-f050974ac649" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesTable_019f6cab-3109-7ff3-854e-a1a12f60d562" xlink:to="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-7da6-b09e-f050974ac649" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7da6-b09e-f050974ac649_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-7da6-b09e-f050974ac649" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7da6-b09e-f050974ac649_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7c57-892f-ea0ba4fe30ef" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-7da6-b09e-f050974ac649" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7c57-892f-ea0ba4fe30ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_019f6cab-3109-7c53-a336-54503fbc07d9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7c57-892f-ea0ba4fe30ef" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_019f6cab-3109-7c53-a336-54503fbc07d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019f6cab-3109-7d16-b72c-3d473c039d16" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesTable_019f6cab-3109-7ff3-854e-a1a12f60d562" xlink:to="loc_srt_OwnershipAxis_019f6cab-3109-7d16-b72c-3d473c039d16" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-3109-7d16-b72c-3d473c039d16_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019f6cab-3109-7d16-b72c-3d473c039d16" xlink:to="loc_srt_OwnershipDomain_019f6cab-3109-7d16-b72c-3d473c039d16_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-3109-7eda-9950-9d503b8f2aa8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019f6cab-3109-7d16-b72c-3d473c039d16" xlink:to="loc_srt_OwnershipDomain_019f6cab-3109-7eda-9950-9d503b8f2aa8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AggregationV2GLLCMember_019f6cab-3109-7b8c-b239-2d42c10ddfc5" xlink:href="nvve-20260630.xsd#nvve_AggregationV2GLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-3109-7eda-9950-9d503b8f2aa8" xlink:to="loc_nvve_AggregationV2GLLCMember_019f6cab-3109-7b8c-b239-2d42c10ddfc5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveJapanMember_019ff538-47aa-7679-a3e1-34223da143d1" xlink:href="nvve-20260630.xsd#nvve_NuvveJapanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-3109-7eda-9950-9d503b8f2aa8" xlink:to="loc_nvve_NuvveJapanMember_019ff538-47aa-7679-a3e1-34223da143d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_WISEEVLLCMember_019f6cab-3109-7349-927d-6489af6e5919" xlink:href="nvve-20260630.xsd#nvve_WISEEVLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-3109-7eda-9950-9d503b8f2aa8" xlink:to="loc_nvve_WISEEVLLCMember_019f6cab-3109-7349-927d-6489af6e5919" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FermataEnergyIILLCMember_019f6cab-3109-7c39-8164-ec89d2e5f421" xlink:href="nvve-20260630.xsd#nvve_FermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-3109-7eda-9950-9d503b8f2aa8" xlink:to="loc_nvve_FermataEnergyIILLCMember_019f6cab-3109-7c39-8164-ec89d2e5f421" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019ffc67-3e3e-799b-ade2-df1826d90318" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesTable_019f6cab-3109-7ff3-854e-a1a12f60d562" xlink:to="loc_dei_LegalEntityAxis_019ffc67-3e3e-799b-ade2-df1826d90318" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019ffc67-3e3e-799b-ade2-df1826d90318_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019ffc67-3e3e-799b-ade2-df1826d90318" xlink:to="loc_dei_EntityDomain_019ffc67-3e3e-799b-ade2-df1826d90318_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019ffc67-3e3e-7124-b6f6-4f0da17f0f14" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019ffc67-3e3e-799b-ade2-df1826d90318" xlink:to="loc_dei_EntityDomain_019ffc67-3e3e-7124-b6f6-4f0da17f0f14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019f6cab-3109-78d0-9449-14b4a7d6d566" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019f6cab-3109-78d0-9449-14b4a7d6d566" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019f6cab-3109-7e97-9080-94cb2deb17d2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_OperatingIncomeLoss_019f6cab-3109-7e97-9080-94cb2deb17d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f6cab-3109-783e-be9a-d504bdfce0e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f6cab-3109-783e-be9a-d504bdfce0e3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f6cab-3109-704b-b5d3-c2e13547dc00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f6cab-3109-704b-b5d3-c2e13547dc00" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_WorkingCapital_019f6cab-3109-750f-9114-219c6e4b65da" xlink:href="nvve-20260630.xsd#nvve_WorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_nvve_WorkingCapital_019f6cab-3109-750f-9114-219c6e4b65da" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TotalEquity_019f6cab-3109-7305-87d1-015937db75c1" xlink:href="nvve-20260630.xsd#nvve_TotalEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_nvve_TotalEquity_019f6cab-3109-7305-87d1-015937db75c1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019f6cab-3109-7722-9c71-0874f208d536" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_ShortTermBorrowings_019f6cab-3109-7722-9c71-0874f208d536" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_019ffc67-3e3e-77f9-af11-c14110899321" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_019ffc67-3e3e-77f9-af11-c14110899321" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityOwnershipPercentage_019f6cab-3109-71d6-8856-2127751015f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableInterestEntityOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_VariableInterestEntityOwnershipPercentage_019f6cab-3109-71d6-8856-2127751015f0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_019f6cab-3109-77b2-a288-32428825ba69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SummaryOfSignificantAccountingPoliciesLineItems_019f6cab-3109-74f0-98b6-700da21bea10" xlink:to="loc_us-gaap_RestrictedCashCurrent_019f6cab-3109-77b2-a288-32428825ba69" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/SummaryofSignificantAccountingPoliciesScheduleofAssetsandliabilitiesofconsolidatedVIEsDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#SummaryofSignificantAccountingPoliciesScheduleofAssetsandliabilitiesofconsolidatedVIEsDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/SummaryofSignificantAccountingPoliciesScheduleofAssetsandliabilitiesofconsolidatedVIEsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019f6cab-3109-7b6b-8020-3cecda1d7270" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-73bf-ae41-3246813b9528" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7b6b-8020-3cecda1d7270" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-73bf-ae41-3246813b9528" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-75c8-a014-56a18f3011d6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-73bf-ae41-3246813b9528" xlink:to="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-75c8-a014-56a18f3011d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-75c8-a014-56a18f3011d6_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-75c8-a014-56a18f3011d6" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-75c8-a014-56a18f3011d6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7f0e-9b8c-660d25f1159b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidatedEntitiesAxis_019f6cab-3109-75c8-a014-56a18f3011d6" xlink:to="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7f0e-9b8c-660d25f1159b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_019f6cab-3109-7e9e-b7ef-65a3ba189fe5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidatedEntitiesDomain_019f6cab-3109-7f0e-9b8c-660d25f1159b" xlink:to="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_019f6cab-3109-7e9e-b7ef-65a3ba189fe5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019f6cab-3109-7760-b02c-14605bb8572f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-73bf-ae41-3246813b9528" xlink:to="loc_srt_OwnershipAxis_019f6cab-3109-7760-b02c-14605bb8572f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-3109-7760-b02c-14605bb8572f_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019f6cab-3109-7760-b02c-14605bb8572f" xlink:to="loc_srt_OwnershipDomain_019f6cab-3109-7760-b02c-14605bb8572f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-3109-747c-bd24-656ed7fa959a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019f6cab-3109-7760-b02c-14605bb8572f" xlink:to="loc_srt_OwnershipDomain_019f6cab-3109-747c-bd24-656ed7fa959a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LevoMobilityLLCMember_019f6cab-3109-7aba-82c6-fa03101c7ce8" xlink:href="nvve-20260630.xsd#nvve_LevoMobilityLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-3109-747c-bd24-656ed7fa959a" xlink:to="loc_nvve_LevoMobilityLLCMember_019f6cab-3109-7aba-82c6-fa03101c7ce8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-3109-7039-bdb9-24462a27aeb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-73bf-ae41-3246813b9528" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-3109-7039-bdb9-24462a27aeb8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-3109-7039-bdb9-24462a27aeb8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-3109-7039-bdb9-24462a27aeb8" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-3109-7039-bdb9-24462a27aeb8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-3109-7307-aa6b-7132f99c99ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-3109-7039-bdb9-24462a27aeb8" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-3109-7307-aa6b-7132f99c99ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonrelatedPartyMember_019f6cab-3109-7d1c-ba50-e0780cf4b91d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonrelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-3109-7307-aa6b-7132f99c99ae" xlink:to="loc_us-gaap_NonrelatedPartyMember_019f6cab-3109-7d1c-ba50-e0780cf4b91d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019f6cab-3109-71c2-9f61-a76428771791" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-3109-7307-aa6b-7132f99c99ae" xlink:to="loc_us-gaap_RelatedPartyMember_019f6cab-3109-71c2-9f61-a76428771791" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7b6b-8020-3cecda1d7270" xlink:to="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f6cab-3109-7e8e-9027-3e7c472166b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f6cab-3109-7e8e-9027-3e7c472166b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_019f6cab-3109-73f9-8617-e288045d737d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_InventoryNet_019f6cab-3109-73f9-8617-e288045d737d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestReceivable_019f6cab-3109-7090-815b-2c00e6bacf77" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_InterestReceivable_019f6cab-3109-7090-815b-2c00e6bacf77" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019f6cab-3109-7dba-8270-bdf7b05ccf7f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019f6cab-3109-7dba-8270-bdf7b05ccf7f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019f6cab-3109-7522-b8f1-6346116bb476" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_AssetsCurrent_019f6cab-3109-7522-b8f1-6346116bb476" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019f6cab-3109-766d-be05-4f5f14bc171d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019f6cab-3109-766d-be05-4f5f14bc171d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f6cab-3109-7661-bdfc-ebad6e84501b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f6cab-3109-7661-bdfc-ebad6e84501b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019f6cab-3109-77f8-b4ea-e89c266d146c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_Goodwill_019f6cab-3109-77f8-b4ea-e89c266d146c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetNoncurrent_019f6cab-3109-7353-8848-14d8b12dd41e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_AccountsReceivableNetNoncurrent_019f6cab-3109-7353-8848-14d8b12dd41e" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAssetsNoncurrent_019f6cab-3109-7f3a-a52c-d7f411e818c9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepositsAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_DepositsAssetsNoncurrent_019f6cab-3109-7f3a-a52c-d7f411e818c9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019f6cab-3109-7107-9e66-5211590612e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019f6cab-3109-7fa1-9d93-91c848af3b7d" xlink:to="loc_us-gaap_Assets_019f6cab-3109-7107-9e66-5211590612e7" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019f6cab-3109-7b6b-8020-3cecda1d7270" xlink:to="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019f6cab-3109-7cce-b054-97148e31b378" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:to="loc_us-gaap_AccountsPayableCurrent_019f6cab-3109-7cce-b054-97148e31b378" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenue_019f6cab-3109-75f0-9f21-f93765d9a4b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:to="loc_us-gaap_DeferredRevenue_019f6cab-3109-75f0-9f21-f93765d9a4b5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AccruedExpensesAndDividendPayable_019f6cab-3109-7bd2-9669-3bcf0faec536" xlink:href="nvve-20260630.xsd#nvve_AccruedExpensesAndDividendPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:to="loc_nvve_AccruedExpensesAndDividendPayable_019f6cab-3109-7bd2-9669-3bcf0faec536" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CustomerDepositLiabilityCurrent_019f6cab-3109-7c1b-9dae-956b7f8afe40" xlink:href="nvve-20260630.xsd#nvve_CustomerDepositLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:to="loc_nvve_CustomerDepositLiabilityCurrent_019f6cab-3109-7c1b-9dae-956b7f8afe40" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayable_019f6cab-3109-7a96-9fa7-cc8bbd735f41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:to="loc_us-gaap_NotesPayable_019f6cab-3109-7a96-9fa7-cc8bbd735f41" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019f6cab-3109-7eac-ad49-b067498ed529" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_019f6cab-3109-7613-8755-4bac3a39a349" xlink:to="loc_us-gaap_Liabilities_019f6cab-3109-7eac-ad49-b067498ed529" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/SummaryofSignificantAccountingPoliciesConcentrationsofCreditRiskNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#SummaryofSignificantAccountingPoliciesConcentrationsofCreditRiskNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/SummaryofSignificantAccountingPoliciesConcentrationsofCreditRiskNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019f6cab-3109-77ec-a4ca-68ed15114537" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-7261-a5c9-808ca137e169" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019f6cab-3109-77ec-a4ca-68ed15114537" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-7261-a5c9-808ca137e169" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019f6cab-3109-7869-b2df-238e81210b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-7261-a5c9-808ca137e169" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019f6cab-3109-7869-b2df-238e81210b6c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019f6cab-3109-7869-b2df-238e81210b6c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019f6cab-3109-7869-b2df-238e81210b6c" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019f6cab-3109-7869-b2df-238e81210b6c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019f6cab-3109-7d03-91de-3a1838808002" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019f6cab-3109-7869-b2df-238e81210b6c" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019f6cab-3109-7d03-91de-3a1838808002" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019f6cab-3109-7982-82a6-44453433902e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019f6cab-3109-7d03-91de-3a1838808002" xlink:to="loc_us-gaap_SalesRevenueNetMember_019f6cab-3109-7982-82a6-44453433902e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableMember_019f6cab-3109-71fe-b3c1-8b716fb466a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019f6cab-3109-7d03-91de-3a1838808002" xlink:to="loc_us-gaap_AccountsReceivableMember_019f6cab-3109-71fe-b3c1-8b716fb466a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019f6cab-3109-7d6f-871d-02dbe9b2ba03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-7261-a5c9-808ca137e169" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019f6cab-3109-7d6f-871d-02dbe9b2ba03" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019f6cab-3109-7d6f-871d-02dbe9b2ba03_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019f6cab-3109-7d6f-871d-02dbe9b2ba03" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019f6cab-3109-7d6f-871d-02dbe9b2ba03_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019f6cab-3109-75c1-b18c-34f14026a121" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019f6cab-3109-7d6f-871d-02dbe9b2ba03" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019f6cab-3109-75c1-b18c-34f14026a121" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_019f6cab-3109-7e70-b076-f71afb2e1581" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019f6cab-3109-75c1-b18c-34f14026a121" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_019f6cab-3109-7e70-b076-f71afb2e1581" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_019f888e-dbb4-7a7b-a1d6-b58bc4d95189" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_019f6cab-3109-7261-a5c9-808ca137e169" xlink:to="loc_srt_MajorCustomersAxis_019f888e-dbb4-7a7b-a1d6-b58bc4d95189" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7a7b-a1d6-b58bc4d95189_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_019f888e-dbb4-7a7b-a1d6-b58bc4d95189" xlink:to="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7a7b-a1d6-b58bc4d95189_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_019f888e-dbb4-7a7b-a1d6-b58bc4d95189" xlink:to="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FourCustomersMember_019fb152-1fbe-733a-8854-97198d5ebb50" xlink:href="nvve-20260630.xsd#nvve_FourCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_FourCustomersMember_019fb152-1fbe-733a-8854-97198d5ebb50" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ThreeCustomersMember_019f888e-dbb4-705a-822f-eb7aa5418d26" xlink:href="nvve-20260630.xsd#nvve_ThreeCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_ThreeCustomersMember_019f888e-dbb4-705a-822f-eb7aa5418d26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CustomerOneMember_019f888e-dbb4-7734-83fa-5e498222e22d" xlink:href="nvve-20260630.xsd#nvve_CustomerOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_CustomerOneMember_019f888e-dbb4-7734-83fa-5e498222e22d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CustomerTwoMember_019f888e-dbb4-7bd6-808d-d1019a19d06e" xlink:href="nvve-20260630.xsd#nvve_CustomerTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_CustomerTwoMember_019f888e-dbb4-7bd6-808d-d1019a19d06e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CustomerThreeMember_019f888e-dbb4-7fd9-a28b-4433d0605c23" xlink:href="nvve-20260630.xsd#nvve_CustomerThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_CustomerThreeMember_019f888e-dbb4-7fd9-a28b-4433d0605c23" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CustomerFourMember_019fa8cc-e0e6-70ef-b4a7-4cb288981ebc" xlink:href="nvve-20260630.xsd#nvve_CustomerFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_CustomerFourMember_019fa8cc-e0e6-70ef-b4a7-4cb288981ebc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TwoCustomersMember_019f888e-dbb4-7778-8527-4d09951856c4" xlink:href="nvve-20260630.xsd#nvve_TwoCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_TwoCustomersMember_019f888e-dbb4-7778-8527-4d09951856c4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TopFiveCustomersMember_019f888e-dbb4-7680-a140-1d01a7760a6b" xlink:href="nvve-20260630.xsd#nvve_TopFiveCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_TopFiveCustomersMember_019f888e-dbb4-7680-a140-1d01a7760a6b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FiveCustomersMember_019f888e-dbb4-78c2-9f06-643e6c90f5e1" xlink:href="nvve-20260630.xsd#nvve_FiveCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019f888e-dbb4-7f97-aba2-e8f713fd2f31" xlink:to="loc_nvve_FiveCustomersMember_019f888e-dbb4-78c2-9f06-643e6c90f5e1" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019f6cab-3109-7d1a-9d67-fef5bfc9e1ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019f6cab-3109-77ec-a4ca-68ed15114537" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019f6cab-3109-7d1a-9d67-fef5bfc9e1ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-3109-7d14-9b42-c11c9d4d4a6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_019f6cab-3109-77ec-a4ca-68ed15114537" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-3109-7d14-9b42-c11c9d4d4a6a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/RevenueRecognitionScheduleofinformationregardingdisaggregatedrevenuebasedonrevenuebyserviceDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#RevenueRecognitionScheduleofinformationregardingdisaggregatedrevenuebasedonrevenuebyserviceDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/RevenueRecognitionScheduleofinformationregardingdisaggregatedrevenuebasedonrevenuebyserviceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueArrangementLineItems_019f6cab-3109-77ce-b275-d8d0d63d5db9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredRevenueArrangementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredRevenueArrangementByTypeTable_019f6cab-3109-7872-ad1b-f48315c771f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredRevenueArrangementByTypeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DeferredRevenueArrangementLineItems_019f6cab-3109-77ce-b275-d8d0d63d5db9" xlink:to="loc_us-gaap_DeferredRevenueArrangementByTypeTable_019f6cab-3109-7872-ad1b-f48315c771f9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019f6cab-3109-7be6-8484-787c950b7c55" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DeferredRevenueArrangementByTypeTable_019f6cab-3109-7872-ad1b-f48315c771f9" xlink:to="loc_srt_ProductOrServiceAxis_019f6cab-3109-7be6-8484-787c950b7c55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7be6-8484-787c950b7c55_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019f6cab-3109-7be6-8484-787c950b7c55" xlink:to="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7be6-8484-787c950b7c55_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019f6cab-3109-7be6-8484-787c950b7c55" xlink:to="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_EngineeringServicesMember_019f6cab-3109-7c48-9174-cc9a283fa66e" xlink:href="nvve-20260630.xsd#nvve_EngineeringServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:to="loc_nvve_EngineeringServicesMember_019f6cab-3109-7c48-9174-cc9a283fa66e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_GridServicesMember_019f6cab-3109-7da1-bce8-064f0dda1704" xlink:href="nvve-20260630.xsd#nvve_GridServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:to="loc_nvve_GridServicesMember_019f6cab-3109-7da1-bce8-064f0dda1704" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrantMember_019f6cab-3109-7bea-ab6e-9df62832aee9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:to="loc_us-gaap_GrantMember_019f6cab-3109-7bea-ab6e-9df62832aee9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductMember_019f6cab-3109-7cd1-ad39-e1e2793c3870" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:to="loc_us-gaap_ProductMember_019f6cab-3109-7cd1-ad39-e1e2793c3870" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_EngineeringServicesManagementFeesMember_019f6cab-3109-7f03-8bb4-dd538a1ff2dc" xlink:href="nvve-20260630.xsd#nvve_EngineeringServicesManagementFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:to="loc_nvve_EngineeringServicesManagementFeesMember_019f6cab-3109-7f03-8bb4-dd538a1ff2dc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_GridInterconnectionServicesRevenueMember_019f6cab-3109-7458-8827-04059deddeef" xlink:href="nvve-20260630.xsd#nvve_GridInterconnectionServicesRevenueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:to="loc_nvve_GridInterconnectionServicesRevenueMember_019f6cab-3109-7458-8827-04059deddeef" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_GridInterconnectionServicesCostMember_019f6cab-3109-7bd4-9a2a-177103a65869" xlink:href="nvve-20260630.xsd#nvve_GridInterconnectionServicesCostMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019f6cab-3109-7278-8d73-e52572592450" xlink:to="loc_nvve_GridInterconnectionServicesCostMember_019f6cab-3109-7bd4-9a2a-177103a65869" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019f6cab-3109-7f32-8fd2-e7658699dc5e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DeferredRevenueArrangementByTypeTable_019f6cab-3109-7872-ad1b-f48315c771f9" xlink:to="loc_dei_LegalEntityAxis_019f6cab-3109-7f32-8fd2-e7658699dc5e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f6cab-3109-7f32-8fd2-e7658699dc5e_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019f6cab-3109-7f32-8fd2-e7658699dc5e" xlink:to="loc_dei_EntityDomain_019f6cab-3109-7f32-8fd2-e7658699dc5e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f6cab-3109-7492-a131-0fc3232549fa" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019f6cab-3109-7f32-8fd2-e7658699dc5e" xlink:to="loc_dei_EntityDomain_019f6cab-3109-7492-a131-0fc3232549fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveJapanMember_019f6cab-3109-7c80-94f4-b7a07b7bb8a2" xlink:href="nvve-20260630.xsd#nvve_NuvveJapanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-3109-7492-a131-0fc3232549fa" xlink:to="loc_nvve_NuvveJapanMember_019f6cab-3109-7c80-94f4-b7a07b7bb8a2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-3109-7a25-8762-1c81ee478118" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DeferredRevenueArrangementLineItems_019f6cab-3109-77ce-b275-d8d0d63d5db9" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-3109-7a25-8762-1c81ee478118" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/RevenueRecognitionScheduleofaggregateamountofrevenuefortheCompanysexistingcontractswithcustomersDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#RevenueRecognitionScheduleofaggregateamountofrevenuefortheCompanysexistingcontractswithcustomersDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/RevenueRecognitionScheduleofaggregateamountofrevenuefortheCompanysexistingcontractswithcustomersDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_019f6cab-3109-7189-9db5-fda3a0056001" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_019f6cab-3109-7189-9db5-fda3a0056001" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_019f6cab-3109-784d-a643-d5e5999e0347" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_019f6cab-3109-7189-9db5-fda3a0056001" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_019f6cab-3109-784d-a643-d5e5999e0347" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_019f6cab-3109-7927-99d1-c3eec6ad24b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_019f6cab-3109-7927-99d1-c3eec6ad24b1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019f6cab-3109-79d3-94cb-03d3a99de787" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019f6cab-3109-79d3-94cb-03d3a99de787" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/RevenueRecognitionScheduleofaggregateamountofrevenuefortheCompanysexistingcontractswithcustomersDetails_1" xlink:type="simple" xlink:href="nvve-20260630.xsd#RevenueRecognitionScheduleofaggregateamountofrevenuefortheCompanysexistingcontractswithcustomersDetails_1"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/RevenueRecognitionScheduleofaggregateamountofrevenuefortheCompanysexistingcontractswithcustomersDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_019f6cab-3109-7189-9db5-fda3a0056001" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_019f6cab-3109-7189-9db5-fda3a0056001" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_019f6cab-3109-7927-99d1-c3eec6ad24b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_019f6cab-3109-7927-99d1-c3eec6ad24b1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019f6cab-3109-79d3-94cb-03d3a99de787" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_019f6cab-3109-7700-88e1-c3005a07dae6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019f6cab-3109-79d3-94cb-03d3a99de787" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/RevenueRecognitionScheduleofrevenuesbygeographyDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#RevenueRecognitionScheduleofrevenuesbygeographyDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/RevenueRecognitionScheduleofrevenuesbygeographyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-3109-7de2-b002-7cd572925714" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019f6cab-3109-7c94-a043-975cd79ed583" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-3109-7de2-b002-7cd572925714" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019f6cab-3109-7c94-a043-975cd79ed583" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019f6cab-3109-7436-aeca-b36701a06059" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019f6cab-3109-7c94-a043-975cd79ed583" xlink:to="loc_srt_StatementGeographicalAxis_019f6cab-3109-7436-aeca-b36701a06059" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f6cab-3109-7436-aeca-b36701a06059_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019f6cab-3109-7436-aeca-b36701a06059" xlink:to="loc_srt_SegmentGeographicalDomain_019f6cab-3109-7436-aeca-b36701a06059_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f6cab-3109-790d-ac91-71ff93601627" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019f6cab-3109-7436-aeca-b36701a06059" xlink:to="loc_srt_SegmentGeographicalDomain_019f6cab-3109-790d-ac91-71ff93601627" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019f6cab-3109-74b4-9b63-c30d18a818d3" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-3109-790d-ac91-71ff93601627" xlink:to="loc_country_US_019f6cab-3109-74b4-9b63-c30d18a818d3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_JP_019f6cab-3109-73f9-9356-52cbf9338ec6" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_JP"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-3109-790d-ac91-71ff93601627" xlink:to="loc_country_JP_019f6cab-3109-73f9-9356-52cbf9338ec6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_DK_019f6cab-3109-706a-a557-87b52f6753f1" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_DK"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-3109-790d-ac91-71ff93601627" xlink:to="loc_country_DK_019f6cab-3109-706a-a557-87b52f6753f1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019f6cab-3109-7ec9-b706-c15c169dc478" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-3109-7de2-b002-7cd572925714" xlink:to="loc_us-gaap_Revenues_019f6cab-3109-7ec9-b706-c15c169dc478" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/FairValueMeasurementsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#FairValueMeasurementsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/FairValueMeasurementsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetLineItems_019f6cab-3109-7530-8056-a438d36c8ac2" xlink:href="nvve-20260630.xsd#nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetTable_019f6cab-3109-74be-b4e8-616c3047de59" xlink:href="nvve-20260630.xsd#nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetLineItems_019f6cab-3109-7530-8056-a438d36c8ac2" xlink:to="loc_nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetTable_019f6cab-3109-74be-b4e8-616c3047de59" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7e4c-bc38-d83b9a49953b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetTable_019f6cab-3109-74be-b4e8-616c3047de59" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7e4c-bc38-d83b9a49953b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-7e4c-bc38-d83b9a49953b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7e4c-bc38-d83b9a49953b" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-7e4c-bc38-d83b9a49953b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-763c-a166-9b4e650c14c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7e4c-bc38-d83b9a49953b" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-763c-a166-9b4e650c14c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019f6cab-3109-77ca-af32-171a31d8ba7a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-763c-a166-9b4e650c14c8" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019f6cab-3109-77ca-af32-171a31d8ba7a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019f6cab-3109-7b5b-96e4-c570a45fac74" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-763c-a166-9b4e650c14c8" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019f6cab-3109-7b5b-96e4-c570a45fac74" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019f6cab-3109-717a-96c9-0ed926bf8ada" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-763c-a166-9b4e650c14c8" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019f6cab-3109-717a-96c9-0ed926bf8ada" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019fb159-bc06-7169-b97d-89c745dff04a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetTable_019f6cab-3109-74be-b4e8-616c3047de59" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019fb159-bc06-7169-b97d-89c745dff04a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7169-b97d-89c745dff04a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019fb159-bc06-7169-b97d-89c745dff04a" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7169-b97d-89c745dff04a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019fb159-bc06-7169-b97d-89c745dff04a" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2024WarrantsMember_019fb15a-359d-7668-b990-a86d5aaffb48" xlink:href="nvve-20260630.xsd#nvve_February2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_February2024WarrantsMember_019fb15a-359d-7668-b990-a86d5aaffb48" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_October2024WarrantsMember_019fb159-bc06-71a1-bcae-2dc08100cf55" xlink:href="nvve-20260630.xsd#nvve_October2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_October2024WarrantsMember_019fb159-bc06-71a1-bcae-2dc08100cf55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnOctober312024Member_019fb15a-359d-7a7d-be27-6e742ba6ac81" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnOctober312024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnOctober312024Member_019fb15a-359d-7a7d-be27-6e742ba6ac81" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_October2024AdditionalInvestmentRightsMember_019fb15a-359d-7a1c-a8bd-5a9b4fd0bf3b" xlink:href="nvve-20260630.xsd#nvve_October2024AdditionalInvestmentRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_October2024AdditionalInvestmentRightsMember_019fb15a-359d-7a1c-a8bd-5a9b4fd0bf3b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-745d-af24-9d7148cf265a" xlink:href="nvve-20260630.xsd#nvve_May2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-745d-af24-9d7148cf265a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-71b9-88fa-68f73a09cee0" xlink:href="nvve-20260630.xsd#nvve_September2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-71b9-88fa-68f73a09cee0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-719c-b64b-b081744dedd4" xlink:href="nvve-20260630.xsd#nvve_November2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-719c-b64b-b081744dedd4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-752f-bd7c-e61b32bb5472" xlink:href="nvve-20260630.xsd#nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember_019fb159-bc06-752f-bd7c-e61b32bb5472" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember_019fb159-bc06-7a70-8815-4c7d3c404cd4" xlink:href="nvve-20260630.xsd#nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember_019fb159-bc06-7a70-8815-4c7d3c404cd4" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_January2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-7d6b-8d0f-b081369db23a" xlink:href="nvve-20260630.xsd#nvve_January2026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_January2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-7d6b-8d0f-b081369db23a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-7f62-bc41-a13490848060" xlink:href="nvve-20260630.xsd#nvve_February2026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_February2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-7f62-bc41-a13490848060" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March062026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-7ba6-8854-235fd7a52975" xlink:href="nvve-20260630.xsd#nvve_March062026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_March062026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-7ba6-8854-235fd7a52975" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-724d-b522-add8476db981" xlink:href="nvve-20260630.xsd#nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-724d-b522-add8476db981" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-725a-9a5b-bccf55cb127a" xlink:href="nvve-20260630.xsd#nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fb159-bc06-725a-9a5b-bccf55cb127a" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December2024WarrantsMember_019fb15a-359d-74f5-ba63-bf27e98ccdff" xlink:href="nvve-20260630.xsd#nvve_December2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_December2024WarrantsMember_019fb15a-359d-74f5-ba63-bf27e98ccdff" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March2025InstitutionalAccreditedInvestorWarrantsMember_019fb15a-359d-7630-b389-095027aaf0ad" xlink:href="nvve-20260630.xsd#nvve_March2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_March2025InstitutionalAccreditedInvestorWarrantsMember_019fb15a-359d-7630-b389-095027aaf0ad" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member_019fb15a-359d-7509-94ee-97537fa9f72a" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member_019fb15a-359d-7509-94ee-97537fa9f72a" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnNovember302025Member_019fb15a-359d-7744-b650-113d0cd77ebe" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnNovember302025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnNovember302025Member_019fb15a-359d-7744-b650-113d0cd77ebe" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member_019fb15a-359d-7fa5-af56-7cfc28891e94" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019fb159-bc06-7a91-9ce8-6ccfa284d3d5" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member_019fb15a-359d-7fa5-af56-7cfc28891e94" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RecurringFairValueMeasurementsAbstract_019f6cab-3109-7b5d-be3e-20758803a734" xlink:href="nvve-20260630.xsd#nvve_RecurringFairValueMeasurementsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_FairValueMeasurementsDetailsScheduleofliabilitiesmeasuredatfairvalueonthecondensedconsolidatedbalancesheetLineItems_019f6cab-3109-7530-8056-a438d36c8ac2" xlink:to="loc_nvve_RecurringFairValueMeasurementsAbstract_019f6cab-3109-7b5d-be3e-20758803a734" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstanding_019f6cab-3109-74a4-9f9e-1cff80cc763a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_RecurringFairValueMeasurementsAbstract_019f6cab-3109-7b5d-be3e-20758803a734" xlink:to="loc_us-gaap_WarrantsAndRightsOutstanding_019f6cab-3109-74a4-9f9e-1cff80cc763a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_019f6cab-3109-72c2-b1f3-a23278d3f449" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_RecurringFairValueMeasurementsAbstract_019f6cab-3109-7b5d-be3e-20758803a734" xlink:to="loc_us-gaap_LongTermDebtFairValue_019f6cab-3109-72c2-b1f3-a23278d3f449" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_019f6cab-3109-7f1c-a46b-082c79113d12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_RecurringFairValueMeasurementsAbstract_019f6cab-3109-7b5d-be3e-20758803a734" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_019f6cab-3109-7f1c-a46b-082c79113d12" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_019f6cab-3109-7ce1-a030-73e37d311e8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_RecurringFairValueMeasurementsAbstract_019f6cab-3109-7b5d-be3e-20758803a734" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_019f6cab-3109-7ce1-a030-73e37d311e8c" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/FairValueMeasurementsScheduleoffairvalueonarecurringbasisDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#FairValueMeasurementsScheduleoffairvalueonarecurringbasisDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/FairValueMeasurementsScheduleoffairvalueonarecurringbasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019f6cab-3109-7ce5-bbc2-7f722c54b83c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FairValueMeasurementsDetailsScheduleoffairvalueonarecurringbasisTable_019f6cab-3109-75e1-947c-741af881cddf" xlink:href="nvve-20260630.xsd#nvve_FairValueMeasurementsDetailsScheduleoffairvalueonarecurringbasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019f6cab-3109-7ce5-bbc2-7f722c54b83c" xlink:to="loc_nvve_FairValueMeasurementsDetailsScheduleoffairvalueonarecurringbasisTable_019f6cab-3109-75e1-947c-741af881cddf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-7d38-b8db-9640e56d37c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_nvve_FairValueMeasurementsDetailsScheduleoffairvalueonarecurringbasisTable_019f6cab-3109-75e1-947c-741af881cddf" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-7d38-b8db-9640e56d37c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7d38-b8db-9640e56d37c0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-7d38-b8db-9640e56d37c0" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7d38-b8db-9640e56d37c0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-7d38-b8db-9640e56d37c0" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_October2024WarrantsMember_019f6cab-3109-7634-96ea-40c44c81f485" xlink:href="nvve-20260630.xsd#nvve_October2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_October2024WarrantsMember_019f6cab-3109-7634-96ea-40c44c81f485" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7e82-8dc6-a45b4b8f6776" xlink:href="nvve-20260630.xsd#nvve_May2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7e82-8dc6-a45b4b8f6776" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-76c4-b9d1-db14760e56d3" xlink:href="nvve-20260630.xsd#nvve_September2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-76c4-b9d1-db14760e56d3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member_019f6cab-3109-79d7-9efa-f00a32754d24" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member_019f6cab-3109-79d7-9efa-f00a32754d24" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-79b9-a3a2-83b581fd5468" xlink:href="nvve-20260630.xsd#nvve_November2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-79b9-a3a2-83b581fd5468" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnNovember302025Member_019f6cab-3109-7197-8f21-57b5aab7178b" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnNovember302025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnNovember302025Member_019f6cab-3109-7197-8f21-57b5aab7178b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-72ff-830a-46d4dedf12ed" xlink:href="nvve-20260630.xsd#nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-72ff-830a-46d4dedf12ed" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member_019f6cab-3109-7e23-be15-16f8f7ce5543" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member_019f6cab-3109-7e23-be15-16f8f7ce5543" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-7202-8eb4-fa98127d4e8e" xlink:href="nvve-20260630.xsd#nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-7202-8eb4-fa98127d4e8e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_January2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-7104-96b2-130b4a4a8be3" xlink:href="nvve-20260630.xsd#nvve_January2026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_January2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-7104-96b2-130b4a4a8be3" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-7653-b660-8bd651344fce" xlink:href="nvve-20260630.xsd#nvve_February2026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_February2026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-7653-b660-8bd651344fce" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March062026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-7bb4-9832-5a7bf3dac073" xlink:href="nvve-20260630.xsd#nvve_March062026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_March062026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-7bb4-9832-5a7bf3dac073" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-737e-82f1-1c2aad026603" xlink:href="nvve-20260630.xsd#nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-3109-737e-82f1-1c2aad026603" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f84b9-fd2d-79f5-9536-d4a5e1382ca8" xlink:href="nvve-20260630.xsd#nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7e52-8d16-d3951ad5f744" xlink:to="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f84b9-fd2d-79f5-9536-d4a5e1382ca8" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019f6cab-3109-7f63-97bf-ae3d8a25f81e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_019f6cab-3109-7ce5-bbc2-7f722c54b83c" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019f6cab-3109-7f63-97bf-ae3d8a25f81e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_019f6cab-3109-7db3-bc2d-7887c467ac8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019f6cab-3109-7f63-97bf-ae3d8a25f81e" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_019f6cab-3109-7db3-bc2d-7887c467ac8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_019f6cab-3109-7c9c-9596-e4d6ba7b9a16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019f6cab-3109-7f63-97bf-ae3d8a25f81e" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_019f6cab-3109-7c9c-9596-e4d6ba7b9a16" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestExpense_019f6cab-3109-7a5e-95d4-40318c1bc77b" xlink:href="nvve-20260630.xsd#nvve_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019f6cab-3109-7f63-97bf-ae3d8a25f81e" xlink:to="loc_nvve_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityInterestExpense_019f6cab-3109-7a5e-95d4-40318c1bc77b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityConversionOfFinancialInstrument_019f6cab-3109-7e1f-8bf7-bdb59e95586d" xlink:href="nvve-20260630.xsd#nvve_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityConversionOfFinancialInstrument"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019f6cab-3109-7f63-97bf-ae3d8a25f81e" xlink:to="loc_nvve_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityConversionOfFinancialInstrument_019f6cab-3109-7e1f-8bf7-bdb59e95586d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_019f6cab-3109-7458-97db-a5cef4580dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_019f6cab-3109-7f63-97bf-ae3d8a25f81e" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_019f6cab-3109-7458-97db-a5cef4580dc9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_019f6cab-3109-75ba-9f9d-a728ff075994" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#FairValueMeasurementsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019f6cab-3109-7858-985a-29eb7e6fa180" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019f6cab-3109-79b3-837f-a1cd037532ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019f6cab-3109-7858-985a-29eb7e6fa180" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019f6cab-3109-79b3-837f-a1cd037532ca" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7d69-86ca-aa12b771dc9c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019f6cab-3109-79b3-837f-a1cd037532ca" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7d69-86ca-aa12b771dc9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-7d69-86ca-aa12b771dc9c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7d69-86ca-aa12b771dc9c" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-7d69-86ca-aa12b771dc9c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-7021-83c1-7afa765ce284" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019f6cab-3109-7d69-86ca-aa12b771dc9c" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-7021-83c1-7afa765ce284" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019f6cab-3109-7592-ac32-a32f7df254a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019f6cab-3109-7021-83c1-7afa765ce284" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019f6cab-3109-7592-ac32-a32f7df254a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019f6cab-3109-7874-b6ba-baeaa3f3d880" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019f6cab-3109-79b3-837f-a1cd037532ca" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019f6cab-3109-7874-b6ba-baeaa3f3d880" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019f6cab-3109-7874-b6ba-baeaa3f3d880_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019f6cab-3109-7874-b6ba-baeaa3f3d880" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019f6cab-3109-7874-b6ba-baeaa3f3d880_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019f6cab-3109-786d-a620-221dea82b3bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019f6cab-3109-7874-b6ba-baeaa3f3d880" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019f6cab-3109-786d-a620-221dea82b3bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019f6cab-3109-778d-b6b7-2ed96bf0140f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019f6cab-3109-786d-a620-221dea82b3bd" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_019f6cab-3109-778d-b6b7-2ed96bf0140f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-713e-b684-b3f5607e77b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019f6cab-3109-79b3-837f-a1cd037532ca" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-713e-b684-b3f5607e77b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-713e-b684-b3f5607e77b0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-713e-b684-b3f5607e77b0" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-713e-b684-b3f5607e77b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019f6cab-3109-713e-b684-b3f5607e77b0" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2024WarrantsMember_019f6cab-3109-7d2a-bbaf-b9f025bf81bc" xlink:href="nvve-20260630.xsd#nvve_February2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_February2024WarrantsMember_019f6cab-3109-7d2a-bbaf-b9f025bf81bc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_October2024WarrantsMember_019f6cab-3109-74a5-bfee-cab98b663a19" xlink:href="nvve-20260630.xsd#nvve_October2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_October2024WarrantsMember_019f6cab-3109-74a5-bfee-cab98b663a19" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnOctober312024Member_019f6cab-3109-7ab1-91ff-691ecc266d00" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnOctober312024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnOctober312024Member_019f6cab-3109-7ab1-91ff-691ecc266d00" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_October2024AdditionalInvestmentRightsMember_019f6cab-3109-7cd3-964c-65903a4ff31e" xlink:href="nvve-20260630.xsd#nvve_October2024AdditionalInvestmentRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_October2024AdditionalInvestmentRightsMember_019f6cab-3109-7cd3-964c-65903a4ff31e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December2024WarrantsMember_019f6cab-3109-72d2-8720-23e8213c817f" xlink:href="nvve-20260630.xsd#nvve_December2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_December2024WarrantsMember_019f6cab-3109-72d2-8720-23e8213c817f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7a8f-8671-20ea6479b517" xlink:href="nvve-20260630.xsd#nvve_May2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7a8f-8671-20ea6479b517" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7597-8057-883b6d26adf7" xlink:href="nvve-20260630.xsd#nvve_September2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7597-8057-883b6d26adf7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member_019f6cab-3109-7fff-bd46-d033076fc89f" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnSeptember302025Member_019f6cab-3109-7fff-bd46-d033076fc89f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7939-bf02-1234cef0997d" xlink:href="nvve-20260630.xsd#nvve_November2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7939-bf02-1234cef0997d" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnNovember302025Member_019f6cab-3109-7aa1-8b4f-2034e78a592d" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnNovember302025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnNovember302025Member_019f6cab-3109-7aa1-8b4f-2034e78a592d" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7cf8-9be9-4b33517ed919" xlink:href="nvve-20260630.xsd#nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_December17And262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-3109-7cf8-9be9-4b33517ed919" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member_019f6cab-3109-7f1a-9161-62c5b6f2a823" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_SeniorConvertibleNotesIssuedOnDecember17And262025Member_019f6cab-3109-7f1a-9161-62c5b6f2a823" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-7bda-a40f-64fd810c32db" xlink:href="nvve-20260630.xsd#nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-7bda-a40f-64fd810c32db" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_January2026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-789d-b8ca-28aefcf6d752" xlink:href="nvve-20260630.xsd#nvve_January2026InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_January2026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-789d-b8ca-28aefcf6d752" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-725a-929a-63450c0d6440" xlink:href="nvve-20260630.xsd#nvve_February2026InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_February2026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-725a-929a-63450c0d6440" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March62026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-722f-803b-bbf4fb6619ce" xlink:href="nvve-20260630.xsd#nvve_March62026InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_March62026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-722f-803b-bbf4fb6619ce" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March272026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-765f-ba34-3a83b5950b10" xlink:href="nvve-20260630.xsd#nvve_March272026InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_March272026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019f6cab-3109-765f-ba34-3a83b5950b10" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_April132026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019fa998-cdfb-7685-a4b9-9d7f33de72bf" xlink:href="nvve-20260630.xsd#nvve_April132026InstitutionalAccreditedInvestorWarrantsAndAIRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019f6cab-3109-7a48-aa50-4baa567bb863" xlink:to="loc_nvve_April132026InstitutionalAccreditedInvestorWarrantsAndAIRMember_019fa998-cdfb-7685-a4b9-9d7f33de72bf" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_019f6cab-3109-7640-b413-e3e5cca16e51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019f6cab-3109-79b3-837f-a1cd037532ca" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_019f6cab-3109-7640-b413-e3e5cca16e51" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7640-b413-e3e5cca16e51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_019f6cab-3109-7640-b413-e3e5cca16e51" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7640-b413-e3e5cca16e51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7c9d-a664-7b9355654f33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_019f6cab-3109-7640-b413-e3e5cca16e51" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7c9d-a664-7b9355654f33" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_019f6cab-3109-7b6f-85a1-eaf60f095867" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7c9d-a664-7b9355654f33" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_019f6cab-3109-7b6f-85a1-eaf60f095867" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPriceVolatilityMember_019f6cab-3109-7100-91df-323bf22440b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputPriceVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7c9d-a664-7b9355654f33" xlink:to="loc_us-gaap_MeasurementInputPriceVolatilityMember_019f6cab-3109-7100-91df-323bf22440b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputSharePriceMember_019f6cab-3109-7c4a-a1f9-7e7df0c1d495" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputSharePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7c9d-a664-7b9355654f33" xlink:to="loc_us-gaap_MeasurementInputSharePriceMember_019f6cab-3109-7c4a-a1f9-7e7df0c1d495" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedDividendRateMember_019f6cab-3109-7e8a-a3a3-4bdc9cd8da01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExpectedDividendRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019f6cab-3109-7c9d-a664-7b9355654f33" xlink:to="loc_us-gaap_MeasurementInputExpectedDividendRateMember_019f6cab-3109-7e8a-a3a3-4bdc9cd8da01" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019f6cab-3109-7b07-87f9-5b88a1b5e482" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019f6cab-3109-7858-985a-29eb7e6fa180" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019f6cab-3109-7b07-87f9-5b88a1b5e482" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_019f6cab-3109-7afd-8ef0-b68fa62898b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019f6cab-3109-7858-985a-29eb7e6fa180" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_019f6cab-3109-7afd-8ef0-b68fa62898b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019f6cab-3109-7252-aad7-5ea6113d18aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019f6cab-3109-7858-985a-29eb7e6fa180" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019f6cab-3109-7252-aad7-5ea6113d18aa" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/FairValueMeasurementsScheduleofotherdebtobligationsDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#FairValueMeasurementsScheduleofotherdebtobligationsDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/FairValueMeasurementsScheduleofotherdebtobligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019f6cab-3109-7ba6-8216-470cb8fff570" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019f6cab-3109-78f1-8961-7fe8c1409254" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-3109-7ba6-8216-470cb8fff570" xlink:to="loc_us-gaap_DebtInstrumentTable_019f6cab-3109-78f1-8961-7fe8c1409254" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019f6cab-3109-77f2-a3bb-54935040a125" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f6cab-3109-78f1-8961-7fe8c1409254" xlink:to="loc_us-gaap_DebtInstrumentAxis_019f6cab-3109-77f2-a3bb-54935040a125" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-3109-77f2-a3bb-54935040a125_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f6cab-3109-77f2-a3bb-54935040a125" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-3109-77f2-a3bb-54935040a125_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-3109-7ab4-9dc6-65e627008306" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f6cab-3109-77f2-a3bb-54935040a125" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-3109-7ab4-9dc6-65e627008306" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TermLoanMember_019fa97c-4815-7f2d-9492-2a8a2924a1cf" xlink:href="nvve-20260630.xsd#nvve_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-3109-7ab4-9dc6-65e627008306" xlink:to="loc_nvve_TermLoanMember_019fa97c-4815-7f2d-9492-2a8a2924a1cf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019f6cab-3109-73ba-8bc5-987bd6bb9796" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesIssuedOnAugust162024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-3109-7ab4-9dc6-65e627008306" xlink:to="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019f6cab-3109-73ba-8bc5-987bd6bb9796" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019f6cab-3109-7975-a31b-5b0b159961c8" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesFermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-3109-7ab4-9dc6-65e627008306" xlink:to="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019f6cab-3109-7975-a31b-5b0b159961c8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValueDisclosureAbstract_019f6cab-3109-7d62-a3eb-ddc592725e15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-3109-7ba6-8216-470cb8fff570" xlink:to="loc_us-gaap_DebtInstrumentFairValueDisclosureAbstract_019f6cab-3109-7d62-a3eb-ddc592725e15" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShorttermDebtFairValue_019fa97c-4815-75a7-827c-9e61f44ec386" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShorttermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentFairValueDisclosureAbstract_019f6cab-3109-7d62-a3eb-ddc592725e15" xlink:to="loc_us-gaap_ShorttermDebtFairValue_019fa97c-4815-75a7-827c-9e61f44ec386" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtFairValueDisclosures_019f6cab-3109-70f2-8c95-5b1a1ea8763b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtFairValueDisclosures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentFairValueDisclosureAbstract_019f6cab-3109-7d62-a3eb-ddc592725e15" xlink:to="loc_us-gaap_ConvertibleDebtFairValueDisclosures_019f6cab-3109-70f2-8c95-5b1a1ea8763b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentsAbstract_019f6cab-3109-7b85-8f23-25eb0a280d7a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-3109-7ba6-8216-470cb8fff570" xlink:to="loc_us-gaap_DebtInstrumentsAbstract_019f6cab-3109-7b85-8f23-25eb0a280d7a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019fa97c-4815-7cd7-be97-7bac70aae753" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019f6cab-3109-7b85-8f23-25eb0a280d7a" xlink:to="loc_us-gaap_ShortTermBorrowings_019fa97c-4815-7cd7-be97-7bac70aae753" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebt_019f6cab-3109-7b19-8474-cd9df7ba75fc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019f6cab-3109-7b85-8f23-25eb0a280d7a" xlink:to="loc_us-gaap_ConvertibleDebt_019f6cab-3109-7b19-8474-cd9df7ba75fc" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/AccountReceivablesNetDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#AccountReceivablesNetDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/AccountReceivablesNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019f6cab-3109-7d15-808a-a6ea57a2ac6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019f6cab-3109-7eab-8499-8c64e4f49aff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019f6cab-3109-7d15-808a-a6ea57a2ac6c" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019f6cab-3109-7eab-8499-8c64e4f49aff" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019f6cab-3109-76e4-bbfe-c636da9a476b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019f6cab-3109-7eab-8499-8c64e4f49aff" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019f6cab-3109-76e4-bbfe-c636da9a476b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019f6cab-3109-76e4-bbfe-c636da9a476b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019f6cab-3109-76e4-bbfe-c636da9a476b" xlink:to="loc_us-gaap_ReceivableTypeDomain_019f6cab-3109-76e4-bbfe-c636da9a476b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_019f6cab-3109-7bd2-9433-1321c1af3ac1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_019f6cab-3109-76e4-bbfe-c636da9a476b" xlink:to="loc_us-gaap_ReceivableTypeDomain_019f6cab-3109-7bd2-9433-1321c1af3ac1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeAccountsReceivableMember_019f6cab-3109-7b4a-96fd-18de45764797" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TradeAccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_019f6cab-3109-7bd2-9433-1321c1af3ac1" xlink:to="loc_us-gaap_TradeAccountsReceivableMember_019f6cab-3109-7b4a-96fd-18de45764797" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019fa9a4-e00f-742f-a90a-69dd1c26a422" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_019f6cab-3109-7eab-8499-8c64e4f49aff" xlink:to="loc_srt_ProductOrServiceAxis_019fa9a4-e00f-742f-a90a-69dd1c26a422" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019fa9a4-e00f-742f-a90a-69dd1c26a422_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019fa9a4-e00f-742f-a90a-69dd1c26a422" xlink:to="loc_srt_ProductsAndServicesDomain_019fa9a4-e00f-742f-a90a-69dd1c26a422_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019fa9a4-e00f-71bb-9be4-f24d571334b0" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019fa9a4-e00f-742f-a90a-69dd1c26a422" xlink:to="loc_srt_ProductsAndServicesDomain_019fa9a4-e00f-71bb-9be4-f24d571334b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_EngineeringServicesManagementFeesMember_019fa9a4-e00f-7f1f-993c-09b984a3f2a3" xlink:href="nvve-20260630.xsd#nvve_EngineeringServicesManagementFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019fa9a4-e00f-71bb-9be4-f24d571334b0" xlink:to="loc_nvve_EngineeringServicesManagementFeesMember_019fa9a4-e00f-7f1f-993c-09b984a3f2a3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_019f6cab-3109-7a50-b54e-8ee3dcbe499c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019f6cab-3109-7d15-808a-a6ea57a2ac6c" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_019f6cab-3109-7a50-b54e-8ee3dcbe499c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_019f6cab-3109-799d-a279-99ec7f534511" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019f6cab-3109-7d15-808a-a6ea57a2ac6c" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_019f6cab-3109-799d-a279-99ec7f534511" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019f6cab-3109-7338-8f5a-3824521de3d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019f6cab-3109-7d15-808a-a6ea57a2ac6c" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019f6cab-3109-7338-8f5a-3824521de3d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_019f6cab-3109-76bd-8bfd-d7cf07da5f43" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019f6cab-3109-7d15-808a-a6ea57a2ac6c" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_019f6cab-3109-76bd-8bfd-d7cf07da5f43" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_019f6cab-3109-79c2-8363-832c7bcee1f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_019f6cab-3109-76bd-8bfd-d7cf07da5f43" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_019f6cab-3109-79c2-8363-832c7bcee1f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AccountsReceivableCreditLossExpenseReversalAndOther_019f6cab-3109-77ff-821e-24cc4f306d4c" xlink:href="nvve-20260630.xsd#nvve_AccountsReceivableCreditLossExpenseReversalAndOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_019f6cab-3109-76bd-8bfd-d7cf07da5f43" xlink:to="loc_nvve_AccountsReceivableCreditLossExpenseReversalAndOther_019f6cab-3109-77ff-821e-24cc4f306d4c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_019f6cab-3109-731e-a36f-ab8edf2c1d5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_019f6cab-3109-76bd-8bfd-d7cf07da5f43" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_019f6cab-3109-731e-a36f-ab8edf2c1d5c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries_019f6cab-3109-7fc9-ae75-79d5cd4c7e0a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward_019f6cab-3109-76bd-8bfd-d7cf07da5f43" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries_019f6cab-3109-7fc9-ae75-79d5cd4c7e0a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_019f6cab-3109-7839-9dad-e222ddef3572" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_019fa9a4-e00f-72bc-9b0d-5317ac617f1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_019f6cab-3109-7d15-808a-a6ea57a2ac6c" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_019fa9a4-e00f-72bc-9b0d-5317ac617f1c" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/InventoriesDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#InventoriesDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryLineItems_019f6cab-3109-72f9-aaae-044ce162b035" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryCurrentTable_019f6cab-3109-7430-b25a-1d1c02bd5a4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryCurrentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_InventoryLineItems_019f6cab-3109-72f9-aaae-044ce162b035" xlink:to="loc_us-gaap_InventoryCurrentTable_019f6cab-3109-7430-b25a-1d1c02bd5a4f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryAxis_019f6cab-3109-7a65-afc3-365f3b7266ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PublicUtilitiesInventoryAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_InventoryCurrentTable_019f6cab-3109-7430-b25a-1d1c02bd5a4f" xlink:to="loc_us-gaap_PublicUtilitiesInventoryAxis_019f6cab-3109-7a65-afc3-365f3b7266ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_019f6cab-3109-7a65-afc3-365f3b7266ea_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PublicUtilitiesInventoryTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PublicUtilitiesInventoryAxis_019f6cab-3109-7a65-afc3-365f3b7266ea" xlink:to="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_019f6cab-3109-7a65-afc3-365f3b7266ea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_019f6cab-3109-7735-9ff6-2db4724ff3d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PublicUtilitiesInventoryTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PublicUtilitiesInventoryAxis_019f6cab-3109-7a65-afc3-365f3b7266ea" xlink:to="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_019f6cab-3109-7735-9ff6-2db4724ff3d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DCChargersMember_019f6cab-3109-74b7-95be-c41189a7bc7f" xlink:href="nvve-20260630.xsd#nvve_DCChargersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_019f6cab-3109-7735-9ff6-2db4724ff3d6" xlink:to="loc_nvve_DCChargersMember_019f6cab-3109-74b7-95be-c41189a7bc7f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ACChargersMember_019f6cab-3109-70c0-ab64-df6fd0d7e85d" xlink:href="nvve-20260630.xsd#nvve_ACChargersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_019f6cab-3109-7735-9ff6-2db4724ff3d6" xlink:to="loc_nvve_ACChargersMember_019f6cab-3109-70c0-ab64-df6fd0d7e85d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ComponentPartsMember_019f6cab-3109-773d-9ba7-b2f74e52702d" xlink:href="nvve-20260630.xsd#nvve_ComponentPartsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_019f6cab-3109-7735-9ff6-2db4724ff3d6" xlink:to="loc_nvve_ComponentPartsMember_019f6cab-3109-773d-9ba7-b2f74e52702d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryGross_019f6cab-3109-71bd-a3e7-0fdc12e36587" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InventoryGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_019f6cab-3109-72f9-aaae-044ce162b035" xlink:to="loc_us-gaap_InventoryGross_019f6cab-3109-71bd-a3e7-0fdc12e36587" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/PropertyPlantandEquipmentDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#PropertyPlantandEquipmentDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/PropertyPlantandEquipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019f6cab-3109-7ed1-bf71-ae8cec1c432e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019f6cab-3109-79a8-98bc-9dc5dcb46043" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019f6cab-3109-7ed1-bf71-ae8cec1c432e" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019f6cab-3109-79a8-98bc-9dc5dcb46043" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-3109-78c8-8a1f-2b5d4cd22f09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019f6cab-3109-79a8-98bc-9dc5dcb46043" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-3109-78c8-8a1f-2b5d4cd22f09" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-78c8-8a1f-2b5d4cd22f09_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-3109-78c8-8a1f-2b5d4cd22f09" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-78c8-8a1f-2b5d4cd22f09_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-7f59-b164-1c646a7ebf6e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-3109-78c8-8a1f-2b5d4cd22f09" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-7f59-b164-1c646a7ebf6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_019f6cab-3109-7ce8-b94f-4152dbd6c0e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-7f59-b164-1c646a7ebf6e" xlink:to="loc_us-gaap_ComputerEquipmentMember_019f6cab-3109-7ce8-b94f-4152dbd6c0e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VehiclesMember_019f6cab-3109-7faf-8180-a636c3b1257c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_VehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-7f59-b164-1c646a7ebf6e" xlink:to="loc_us-gaap_VehiclesMember_019f6cab-3109-7faf-8180-a636c3b1257c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OfficeEquipmentMember_019f6cab-3109-7cf9-9da3-73f036679935" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OfficeEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-7f59-b164-1c646a7ebf6e" xlink:to="loc_us-gaap_OfficeEquipmentMember_019f6cab-3109-7cf9-9da3-73f036679935" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CapitalizedChargerMember_019fad0d-5746-7007-94bb-9f574a182f76" xlink:href="nvve-20260630.xsd#nvve_CapitalizedChargerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-7f59-b164-1c646a7ebf6e" xlink:to="loc_nvve_CapitalizedChargerMember_019fad0d-5746-7007-94bb-9f574a182f76" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TestUnitsAndLoanedChargersMember_019f6cab-3109-70a7-a6b2-da1d303b4230" xlink:href="nvve-20260630.xsd#nvve_TestUnitsAndLoanedChargersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-3109-7f59-b164-1c646a7ebf6e" xlink:to="loc_nvve_TestUnitsAndLoanedChargersMember_019f6cab-3109-70a7-a6b2-da1d303b4230" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f6cab-3109-7c3d-bfab-e866b1de1e6b" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019f6cab-3109-79a8-98bc-9dc5dcb46043" xlink:to="loc_srt_RangeAxis_019f6cab-3109-7c3d-bfab-e866b1de1e6b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-3109-7c3d-bfab-e866b1de1e6b_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019f6cab-3109-7c3d-bfab-e866b1de1e6b" xlink:to="loc_srt_RangeMember_019f6cab-3109-7c3d-bfab-e866b1de1e6b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-3109-71a6-8903-99f53d418795" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019f6cab-3109-7c3d-bfab-e866b1de1e6b" xlink:to="loc_srt_RangeMember_019f6cab-3109-71a6-8903-99f53d418795" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019f6cab-3109-74de-8877-b758e54518fc" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-3109-71a6-8903-99f53d418795" xlink:to="loc_srt_MinimumMember_019f6cab-3109-74de-8877-b758e54518fc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f6cab-3109-775b-ace1-9e64b866f04f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-3109-71a6-8903-99f53d418795" xlink:to="loc_srt_MaximumMember_019f6cab-3109-775b-ace1-9e64b866f04f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019f6cab-3109-7ff4-a2b1-87b3d3125679" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019f6cab-3109-7ed1-bf71-ae8cec1c432e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019f6cab-3109-7ff4-a2b1-87b3d3125679" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019f6cab-3109-76b3-9c3f-938cce96bfd7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019f6cab-3109-7ed1-bf71-ae8cec1c432e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019f6cab-3109-76b3-9c3f-938cce96bfd7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019f6cab-3109-75ff-8529-ddf47916f15c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019f6cab-3109-7ed1-bf71-ae8cec1c432e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019f6cab-3109-75ff-8529-ddf47916f15c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019f6cab-3109-737e-abdf-47e40137e6d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019f6cab-3109-7ed1-bf71-ae8cec1c432e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019f6cab-3109-737e-abdf-47e40137e6d6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019f6cab-3109-7419-98c5-01e7023023fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019f6cab-3109-7ed1-bf71-ae8cec1c432e" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019f6cab-3109-7419-98c5-01e7023023fa" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/DebtScheduleofdebtDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#DebtScheduleofdebtDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/DebtScheduleofdebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019f6cab-31bc-77c2-b4a2-3b937e316185" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_DebtInstrumentTable_019f6cab-31bc-77c2-b4a2-3b937e316185" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-7116-ac6d-61c4c3c0163c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019f6cab-31bc-77c2-b4a2-3b937e316185" xlink:to="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-7116-ac6d-61c4c3c0163c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-7116-ac6d-61c4c3c0163c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-7116-ac6d-61c4c3c0163c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-7116-ac6d-61c4c3c0163c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-7116-ac6d-61c4c3c0163c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TermLoanMember_019fad5f-1bc8-7155-a10e-73ee6537d338" xlink:href="nvve-20260630.xsd#nvve_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:to="loc_nvve_TermLoanMember_019fad5f-1bc8-7155-a10e-73ee6537d338" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019f6cab-31bc-75de-b7dc-4ff6ad7088cb" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesIssuedOnAugust162024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:to="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019f6cab-31bc-75de-b7dc-4ff6ad7088cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesSeptember2025Member_019f6cab-31bc-7ad0-bb99-da90aabbd8f6" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesSeptember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:to="loc_nvve_SeniorConvertibleNotesSeptember2025Member_019f6cab-31bc-7ad0-bb99-da90aabbd8f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesNovember2025Member_019f6cab-31bc-738f-a9b4-9d73d525c964" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesNovember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:to="loc_nvve_SeniorConvertibleNotesNovember2025Member_019f6cab-31bc-738f-a9b4-9d73d525c964" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesDecember2025Member_019f6cab-31bc-75a6-8d7a-775a5d48af31" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesDecember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:to="loc_nvve_SeniorConvertibleNotesDecember2025Member_019f6cab-31bc-75a6-8d7a-775a5d48af31" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019f6cab-31bc-7a98-a1e5-d59b95b58b7e" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesFermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-73bf-b93b-28fb462b05ab" xlink:to="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019f6cab-31bc-7a98-a1e5-d59b95b58b7e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019fad5f-1bc8-7162-9196-c82a2099d220" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_ShortTermBorrowings_019fad5f-1bc8-7162-9196-c82a2099d220" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebt_019f6cab-31bc-7a85-b657-3259a16c413b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_ConvertibleDebt_019f6cab-31bc-7a85-b657-3259a16c413b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019f6cab-31bc-7975-9f3b-b36e15bb7c3f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019f6cab-31bc-7975-9f3b-b36e15bb7c3f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019f6cab-31bc-7688-a622-2fcb1e293d6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019f6cab-31bc-7688-a622-2fcb1e293d6a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019f6cab-31bc-72d6-8e8c-8b711fe16403" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_LongTermDebt_019f6cab-31bc-72d6-8e8c-8b711fe16403" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019f6cab-31bc-7162-a417-850a041f9a48" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_LongTermDebtCurrent_019f6cab-31bc-7162-a417-850a041f9a48" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019f6cab-31bc-7451-bd00-bfb28990d97e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019f6cab-31bc-7c85-aa1f-76f5e3f7649c" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019f6cab-31bc-7451-bd00-bfb28990d97e" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/DebtNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#DebtNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/DebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019fb1d5-3232-75cb-b94b-e4b88c59903d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:to="loc_us-gaap_DebtInstrumentAxis_019fb1d5-3232-75cb-b94b-e4b88c59903d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-75cb-b94b-e4b88c59903d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fb1d5-3232-75cb-b94b-e4b88c59903d" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-75cb-b94b-e4b88c59903d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fb1d5-3232-75cb-b94b-e4b88c59903d" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TermLoanMember_019fb1d5-3232-790e-acd0-9c7aed67cfc9" xlink:href="nvve-20260630.xsd#nvve_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:to="loc_nvve_TermLoanMember_019fb1d5-3232-790e-acd0-9c7aed67cfc9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019fb1d6-f0f9-7f1c-8cdb-386b18ca14c6" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesIssuedOnAugust162024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:to="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019fb1d6-f0f9-7f1c-8cdb-386b18ca14c6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesSeptember2025Member_019fb1d9-40eb-7b5b-a357-c3bdc3d66b17" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesSeptember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:to="loc_nvve_SeniorConvertibleNotesSeptember2025Member_019fb1d9-40eb-7b5b-a357-c3bdc3d66b17" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesNovember2025Member_019fb1d9-d534-711a-9dd3-2f251a9c0b9b" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesNovember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:to="loc_nvve_SeniorConvertibleNotesNovember2025Member_019fb1d9-d534-711a-9dd3-2f251a9c0b9b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeniorConvertibleNotesDecember2025Member_019fb1db-41ed-7042-9b23-6e2a4edcac6b" xlink:href="nvve-20260630.xsd#nvve_SeniorConvertibleNotesDecember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:to="loc_nvve_SeniorConvertibleNotesDecember2025Member_019fb1db-41ed-7042-9b23-6e2a4edcac6b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019fb1dc-e159-78ca-9267-004ecc9c58f2" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesFermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fb1d5-3232-79a6-a3b1-e8044820bda1" xlink:to="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019fb1dc-e159-78ca-9267-004ecc9c58f2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019fb1d5-3232-7d0e-96e3-e364cb2dbeed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019fb1d5-3232-7d0e-96e3-e364cb2dbeed" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fb1d5-3232-7d0e-96e3-e364cb2dbeed_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fb1d5-3232-7d0e-96e3-e364cb2dbeed" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fb1d5-3232-7d0e-96e3-e364cb2dbeed_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019fb1d5-3232-7662-8478-167c7d2d6ef7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019fb1d5-3232-7d0e-96e3-e364cb2dbeed" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019fb1d5-3232-7662-8478-167c7d2d6ef7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_019fb1d9-40eb-7b33-b2fe-bbde9c486e6f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019fb1d5-3232-7662-8478-167c7d2d6ef7" xlink:to="loc_us-gaap_ConvertibleDebtMember_019fb1d9-40eb-7b33-b2fe-bbde9c486e6f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesMember_019fb1d6-f0f9-7092-b4f3-77716bfe4857" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019fb1d5-3232-7662-8478-167c7d2d6ef7" xlink:to="loc_nvve_PromissoryNotesMember_019fb1d6-f0f9-7092-b4f3-77716bfe4857" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_019fb1d6-f0f9-711a-8b83-81dd60fa04fb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:to="loc_srt_TitleOfIndividualAxis_019fb1d6-f0f9-711a-8b83-81dd60fa04fb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019fb1d6-f0f9-711a-8b83-81dd60fa04fb_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_019fb1d6-f0f9-711a-8b83-81dd60fa04fb" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019fb1d6-f0f9-711a-8b83-81dd60fa04fb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019fb1d6-f0f9-7247-a1b8-9b595b50e200" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_019fb1d6-f0f9-711a-8b83-81dd60fa04fb" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019fb1d6-f0f9-7247-a1b8-9b595b50e200" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember_019fb1d6-f0f9-7636-b6ae-987fe38f0aa4" xlink:href="nvve-20260630.xsd#nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019fb1d6-f0f9-7247-a1b8-9b595b50e200" xlink:to="loc_nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember_019fb1d6-f0f9-7636-b6ae-987fe38f0aa4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember_019fb1d6-f0f9-7756-b673-3f94b605d7aa" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019fb1d6-f0f9-7247-a1b8-9b595b50e200" xlink:to="loc_srt_ChiefExecutiveOfficerMember_019fb1d6-f0f9-7756-b673-3f94b605d7aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefFinancialOfficerMember_019fb1d6-f0f9-707c-b770-d3a3b4fd8db8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ChiefFinancialOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019fb1d6-f0f9-7247-a1b8-9b595b50e200" xlink:to="loc_srt_ChiefFinancialOfficerMember_019fb1d6-f0f9-707c-b770-d3a3b4fd8db8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019fb1d9-40eb-7a97-b142-50daa2725a25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019fb1d9-40eb-7a97-b142-50daa2725a25" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019fb1d9-40eb-7a97-b142-50daa2725a25_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019fb1d9-40eb-7a97-b142-50daa2725a25" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019fb1d9-40eb-7a97-b142-50daa2725a25_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019fb1d9-40eb-7046-a46c-923cbef23e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019fb1d9-40eb-7a97-b142-50daa2725a25" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019fb1d9-40eb-7046-a46c-923cbef23e0d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_WarrantsIssuedOnSeptember2025Member_019fb1d9-40eb-7501-b3f7-e1e4a79555e9" xlink:href="nvve-20260630.xsd#nvve_WarrantsIssuedOnSeptember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019fb1d9-40eb-7046-a46c-923cbef23e0d" xlink:to="loc_nvve_WarrantsIssuedOnSeptember2025Member_019fb1d9-40eb-7501-b3f7-e1e4a79555e9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_WarrantsIssuedOnNovember172025Member_019fb1da-db0e-7f33-a975-952d4de7f931" xlink:href="nvve-20260630.xsd#nvve_WarrantsIssuedOnNovember172025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019fb1d9-40eb-7046-a46c-923cbef23e0d" xlink:to="loc_nvve_WarrantsIssuedOnNovember172025Member_019fb1da-db0e-7f33-a975-952d4de7f931" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_WarrantsIssuedInDecember2025Member_019fb1dc-6964-7e16-9a6e-9cc391998a3e" xlink:href="nvve-20260630.xsd#nvve_WarrantsIssuedInDecember2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019fb1d9-40eb-7046-a46c-923cbef23e0d" xlink:to="loc_nvve_WarrantsIssuedInDecember2025Member_019fb1dc-6964-7e16-9a6e-9cc391998a3e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019ff026-e498-7420-bb1e-9bf0d9f57a05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:to="loc_us-gaap_CreditFacilityAxis_019ff026-e498-7420-bb1e-9bf0d9f57a05" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019ff026-e498-7420-bb1e-9bf0d9f57a05_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019ff026-e498-7420-bb1e-9bf0d9f57a05" xlink:to="loc_us-gaap_CreditFacilityDomain_019ff026-e498-7420-bb1e-9bf0d9f57a05_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019ff026-e498-70f5-a125-6d3a18476027" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019ff026-e498-7420-bb1e-9bf0d9f57a05" xlink:to="loc_us-gaap_CreditFacilityDomain_019ff026-e498-70f5-a125-6d3a18476027" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesMember_019ff026-e498-7cbe-9844-70e5ca8fb041" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019ff026-e498-70f5-a125-6d3a18476027" xlink:to="loc_nvve_PromissoryNotesMember_019ff026-e498-7cbe-9844-70e5ca8fb041" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019ff026-e498-7c54-ae25-6b7d1432d098" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019ff026-e498-7c54-ae25-6b7d1432d098" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019ff026-e498-7c54-ae25-6b7d1432d098_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019ff026-e498-7c54-ae25-6b7d1432d098" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019ff026-e498-7c54-ae25-6b7d1432d098_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019ff026-e498-7dae-a120-74786e7c307e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019ff026-e498-7c54-ae25-6b7d1432d098" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019ff026-e498-7dae-a120-74786e7c307e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019ff026-e498-7481-a274-c1f199148436" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019ff026-e498-7dae-a120-74786e7c307e" xlink:to="loc_us-gaap_SubsequentEventMember_019ff026-e498-7481-a274-c1f199148436" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_019ff240-1066-70bb-b350-e866b13db67b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fb1d5-3232-7c34-bde0-6a713014e664" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_019ff240-1066-70bb-b350-e866b13db67b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019ff240-1066-70bb-b350-e866b13db67b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019ff240-1066-70bb-b350-e866b13db67b" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019ff240-1066-70bb-b350-e866b13db67b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019ff240-1066-71fd-bf29-99da6d122826" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019ff240-1066-70bb-b350-e866b13db67b" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019ff240-1066-71fd-bf29-99da6d122826" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019ff09e-73ca-7794-be2b-25f3e9e452b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_019ff240-1066-71fd-bf29-99da6d122826" xlink:to="loc_us-gaap_SecuredDebtMember_019ff09e-73ca-7794-be2b-25f3e9e452b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019fb1d5-3232-7f43-bccf-b171cbbb82a1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019fb1d5-3232-7f43-bccf-b171cbbb82a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPayment_019fb1d5-3232-7978-b542-0b9f87291ee8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentPeriodicPayment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPayment_019fb1d5-3232-7978-b542-0b9f87291ee8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019fb1d5-3232-751c-8e41-af940565c1f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentUnamortizedDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_019fb1d5-3232-751c-8e41-af940565c1f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DebtInstrumentOriginalIssueDiscountPercent_019fb1d5-3232-767a-b198-2d3f6250ad1f" xlink:href="nvve-20260630.xsd#nvve_DebtInstrumentOriginalIssueDiscountPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_DebtInstrumentOriginalIssueDiscountPercent_019fb1d5-3232-767a-b198-2d3f6250ad1f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_019fb1d6-2226-76de-b523-3da143a0a1e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_InterestExpenseDebt_019fb1d6-2226-76de-b523-3da143a0a1e8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FundedAmount_019fb1d6-f0f9-75c4-99f3-11a994495417" xlink:href="nvve-20260630.xsd#nvve_FundedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_FundedAmount_019fb1d6-f0f9-75c4-99f3-11a994495417" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019fb1d6-f0f9-70a5-993a-526763507fad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentTerm_019fb1d6-f0f9-70a5-993a-526763507fad" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019fb1d6-f0f9-7cd3-ae1c-b96f67c28b21" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019fb1d6-f0f9-7cd3-ae1c-b96f67c28b21" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_EquityMethodInvestmentMembershipUnits_019fb1d6-f0f9-77b3-8767-d739ac0eb79e" xlink:href="nvve-20260630.xsd#nvve_EquityMethodInvestmentMembershipUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_EquityMethodInvestmentMembershipUnits_019fb1d6-f0f9-77b3-8767-d739ac0eb79e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_EquityMethodInvestmentEntitledShareOfOperatingCashFlowsPercent_019fb1d6-f0f9-74c1-b99c-a19956861594" xlink:href="nvve-20260630.xsd#nvve_EquityMethodInvestmentEntitledShareOfOperatingCashFlowsPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_EquityMethodInvestmentEntitledShareOfOperatingCashFlowsPercent_019fb1d6-f0f9-74c1-b99c-a19956861594" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_019fb1d6-f0f9-7d64-b111-7f0a3c90c32d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_RepaymentsOfDebt_019fb1d6-f0f9-7d64-b111-7f0a3c90c32d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019fb1d9-40eb-7b76-a020-f4b3cb9c2731" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019fb1d9-40eb-7b76-a020-f4b3cb9c2731" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DebtInstrumentInterestRateEffectivePercentagePercentageIncreaseRateUponDefault_019fb1d9-40eb-771d-bb16-44d542a8400c" xlink:href="nvve-20260630.xsd#nvve_DebtInstrumentInterestRateEffectivePercentagePercentageIncreaseRateUponDefault"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_DebtInstrumentInterestRateEffectivePercentagePercentageIncreaseRateUponDefault_019fb1d9-40eb-771d-bb16-44d542a8400c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_019fb1d9-40eb-7961-94b5-0005526081e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_019fb1d9-40eb-7961-94b5-0005526081e1" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ClassOfWarrantOrRightPercentageOfWarrantsExercised_019fb1d9-40eb-7b67-a515-6e04db32e66c" xlink:href="nvve-20260630.xsd#nvve_ClassOfWarrantOrRightPercentageOfWarrantsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_ClassOfWarrantOrRightPercentageOfWarrantsExercised_019fb1d9-40eb-7b67-a515-6e04db32e66c" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fb1d9-40eb-75a3-8f59-a9b2a184ee2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fb1d9-40eb-75a3-8f59-a9b2a184ee2a" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ClassOfWarrantOrRightExercisePriceAsAPercentageOfStockPrice_019fb1d9-40eb-7d7f-87fc-6bb94befbfcd" xlink:href="nvve-20260630.xsd#nvve_ClassOfWarrantOrRightExercisePriceAsAPercentageOfStockPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_ClassOfWarrantOrRightExercisePriceAsAPercentageOfStockPrice_019fb1d9-40eb-7d7f-87fc-6bb94befbfcd" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_019fb1d9-40eb-7f54-94ae-14451fd8d48c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_019fb1d9-40eb-7f54-94ae-14451fd8d48c" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_019fb1d9-40eb-75d6-9f11-23deec1ceaa1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_019fb1d9-40eb-75d6-9f11-23deec1ceaa1" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_019fb1d9-40eb-767d-bd2a-27f44fd426f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_us-gaap_InterestPayableCurrentAndNoncurrent_019fb1d9-40eb-767d-bd2a-27f44fd426f4" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DebtInstrumentInterestRateEffectivePercentagePercentageIncreasedRateUponDefault_019fb1da-db0e-7cdd-8fe2-a0cacca727fe" xlink:href="nvve-20260630.xsd#nvve_DebtInstrumentInterestRateEffectivePercentagePercentageIncreasedRateUponDefault"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_DebtInstrumentInterestRateEffectivePercentagePercentageIncreasedRateUponDefault_019fb1da-db0e-7cdd-8fe2-a0cacca727fe" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedPercent_019ff026-e498-7026-99ee-4a8b48939577" xlink:href="nvve-20260630.xsd#nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedPercent_019ff026-e498-7026-99ee-4a8b48939577" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedAmount_01a0005b-a496-7172-bc95-5a02c9e61b66" xlink:href="nvve-20260630.xsd#nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedAmount_01a0005b-a496-7172-bc95-5a02c9e61b66" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedPeriod_019ff6b1-ebaa-7188-ac5d-ad7143f3f239" xlink:href="nvve-20260630.xsd#nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fb1d5-3232-7c8d-9460-13b086167dac" xlink:to="loc_nvve_DebtInstrumentOutstandingPrincipalPastMaturityRepaymentDemandedPeriod_019ff6b1-ebaa-7188-ac5d-ad7143f3f239" xlink:type="arc" order="23"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/DebtScheduleoftermloanDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#DebtScheduleoftermloanDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/DebtScheduleoftermloanDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019fad59-bb85-73ba-998b-91af056302d4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019fad59-bb85-7f57-8f04-568dfdc19995" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fad59-bb85-73ba-998b-91af056302d4" xlink:to="loc_us-gaap_DebtInstrumentTable_019fad59-bb85-7f57-8f04-568dfdc19995" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019fad59-bb85-79f4-8805-57b9c52cb9e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fad59-bb85-7f57-8f04-568dfdc19995" xlink:to="loc_us-gaap_DebtInstrumentAxis_019fad59-bb85-79f4-8805-57b9c52cb9e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fad59-bb85-79f4-8805-57b9c52cb9e2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fad59-bb85-79f4-8805-57b9c52cb9e2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fad59-bb85-79f4-8805-57b9c52cb9e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019fad59-bb85-71c7-85ad-a75bd2fc14b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019fad59-bb85-79f4-8805-57b9c52cb9e2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019fad59-bb85-71c7-85ad-a75bd2fc14b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TermLoanMember_019fb1df-4587-7b3b-8134-ebe5369b905b" xlink:href="nvve-20260630.xsd#nvve_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019fad59-bb85-71c7-85ad-a75bd2fc14b8" xlink:to="loc_nvve_TermLoanMember_019fb1df-4587-7b3b-8134-ebe5369b905b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_019ff23c-19cc-7b23-a485-e27d801c5711" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019fad59-bb85-7f57-8f04-568dfdc19995" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_019ff23c-19cc-7b23-a485-e27d801c5711" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019ff23c-19cc-7b23-a485-e27d801c5711_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019ff23c-19cc-7b23-a485-e27d801c5711" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019ff23c-19cc-7b23-a485-e27d801c5711_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019ff23c-19cc-7bbe-a54e-04d79658197d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019ff23c-19cc-7b23-a485-e27d801c5711" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019ff23c-19cc-7bbe-a54e-04d79658197d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019ff09d-4c4a-79e1-9200-47a603bfe035" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_019ff23c-19cc-7bbe-a54e-04d79658197d" xlink:to="loc_us-gaap_SecuredDebtMember_019ff09d-4c4a-79e1-9200-47a603bfe035" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019fad59-bb85-76c7-a634-87bb4de95c14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fad59-bb85-73ba-998b-91af056302d4" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019fad59-bb85-76c7-a634-87bb4de95c14" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019fad59-bb85-7d74-b538-3010eab28fe6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fad59-bb85-73ba-998b-91af056302d4" xlink:to="loc_us-gaap_ShortTermBorrowings_019fad59-bb85-7d74-b538-3010eab28fe6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_DebtWeightedAverageInterestRateWeekly_019fad59-bb86-740b-8990-6ba540198dd3" xlink:href="nvve-20260630.xsd#nvve_DebtWeightedAverageInterestRateWeekly"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fad59-bb85-73ba-998b-91af056302d4" xlink:to="loc_nvve_DebtWeightedAverageInterestRateWeekly_019fad59-bb86-740b-8990-6ba540198dd3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtWeightedAverageInterestRateOverTime_019fad59-bb86-7a4e-8d29-752a7583d66f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShortTermDebtWeightedAverageInterestRateOverTime"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019fad59-bb85-73ba-998b-91af056302d4" xlink:to="loc_us-gaap_ShortTermDebtWeightedAverageInterestRateOverTime_019fad59-bb86-7a4e-8d29-752a7583d66f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockholdersDeficitNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockholdersDeficitNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockholdersDeficitNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_019f6cab-31bc-7a5e-90fe-8977faf36d32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_019f6cab-31bc-7a5e-90fe-8977faf36d32" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019f6cab-31bc-7a5e-90fe-8977faf36d32_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019f6cab-31bc-7a5e-90fe-8977faf36d32" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019f6cab-31bc-7a5e-90fe-8977faf36d32_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019f6cab-31bc-738d-a4fe-fb0d5adcfa7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_019f6cab-31bc-7a5e-90fe-8977faf36d32" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019f6cab-31bc-738d-a4fe-fb0d5adcfa7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrivatePlacementMember_019f6cab-31bc-700f-9ec5-53d0328460be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrivatePlacementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_019f6cab-31bc-738d-a4fe-fb0d5adcfa7d" xlink:to="loc_us-gaap_PrivatePlacementMember_019f6cab-31bc-700f-9ec5-53d0328460be" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019f6cab-31bc-7644-9eea-de44d0f96019" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_dei_LegalEntityAxis_019f6cab-31bc-7644-9eea-de44d0f96019" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f6cab-31bc-7644-9eea-de44d0f96019_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019f6cab-31bc-7644-9eea-de44d0f96019" xlink:to="loc_dei_EntityDomain_019f6cab-31bc-7644-9eea-de44d0f96019_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019f6cab-31bc-7309-bf8b-4df0e478b15b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019f6cab-31bc-7644-9eea-de44d0f96019" xlink:to="loc_dei_EntityDomain_019f6cab-31bc-7309-bf8b-4df0e478b15b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveNewMexicoLLCMember_019f6cab-31bc-7a30-a5ee-39ecc49bd858" xlink:href="nvve-20260630.xsd#nvve_NuvveNewMexicoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-31bc-7309-bf8b-4df0e478b15b" xlink:to="loc_nvve_NuvveNewMexicoLLCMember_019f6cab-31bc-7a30-a5ee-39ecc49bd858" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveJapanMember_019f6cab-31bc-74c2-b05c-d776a85c3edf" xlink:href="nvve-20260630.xsd#nvve_NuvveJapanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019f6cab-31bc-7309-bf8b-4df0e478b15b" xlink:to="loc_nvve_NuvveJapanMember_019f6cab-31bc-74c2-b05c-d776a85c3edf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bc-7010-8902-cf0247f52b73" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bc-7010-8902-cf0247f52b73" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bc-7010-8902-cf0247f52b73_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bc-7010-8902-cf0247f52b73" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bc-7010-8902-cf0247f52b73_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bc-789b-9ab5-650efd00776e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bc-7010-8902-cf0247f52b73" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bc-789b-9ab5-650efd00776e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockWarrantsMember_019f6cab-31bc-73fd-977f-a8e39f35b874" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bc-789b-9ab5-650efd00776e" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockWarrantsMember_019f6cab-31bc-73fd-977f-a8e39f35b874" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-78c4-b4c4-6968df5a52a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-78c4-b4c4-6968df5a52a6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-78c4-b4c4-6968df5a52a6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-78c4-b4c4-6968df5a52a6" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-78c4-b4c4-6968df5a52a6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-705b-92a2-e2cfd38a44c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-78c4-b4c4-6968df5a52a6" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-705b-92a2-e2cfd38a44c3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bc-73e6-b222-57d6a66a6bb8" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-705b-92a2-e2cfd38a44c3" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bc-73e6-b222-57d6a66a6bb8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredClassAMember_019f6cab-31bc-720e-a456-ab0703e689e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-705b-92a2-e2cfd38a44c3" xlink:to="loc_us-gaap_PreferredClassAMember_019f6cab-31bc-720e-a456-ab0703e689e5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_019f6cab-31bc-7fb9-95e6-37bc6ceb4605" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-705b-92a2-e2cfd38a44c3" xlink:to="loc_us-gaap_CommonClassBMember_019f6cab-31bc-7fb9-95e6-37bc6ceb4605" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_JKissMember_019f6cab-31bc-7dbd-b032-894a34c12c52" xlink:href="nvve-20260630.xsd#nvve_JKissMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-705b-92a2-e2cfd38a44c3" xlink:to="loc_nvve_JKissMember_019f6cab-31bc-7dbd-b032-894a34c12c52" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dbb-881e-5b99366bcbab" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dbb-881e-5b99366bcbab" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7dbb-881e-5b99366bcbab_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dbb-881e-5b99366bcbab" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7dbb-881e-5b99366bcbab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7b56-978d-d6c94d49c6a9" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dbb-881e-5b99366bcbab" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7b56-978d-d6c94d49c6a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FermataEnergyIILLCMember_019f6cab-31bc-79b2-bace-e6e8a0e6166e" xlink:href="nvve-20260630.xsd#nvve_FermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7b56-978d-d6c94d49c6a9" xlink:to="loc_nvve_FermataEnergyIILLCMember_019f6cab-31bc-79b2-bace-e6e8a0e6166e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-31bc-75f2-a786-a29433dd9f4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConversionOfStockByUniqueDescriptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-31bc-75f2-a786-a29433dd9f4d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-31bc-75f2-a786-a29433dd9f4d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-31bc-75f2-a786-a29433dd9f4d" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-31bc-75f2-a786-a29433dd9f4d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-31bc-7357-aa1a-dd4565c89f4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_019f6cab-31bc-75f2-a786-a29433dd9f4d" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-31bc-7357-aa1a-dd4565c89f4d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ConversionOfConvertiblePreferredStockMember_019f6cab-31bc-7b7a-a411-9458923ae4fb" xlink:href="nvve-20260630.xsd#nvve_ConversionOfConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_019f6cab-31bc-7357-aa1a-dd4565c89f4d" xlink:to="loc_nvve_ConversionOfConvertiblePreferredStockMember_019f6cab-31bc-7b7a-a411-9458923ae4fb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019fdbc1-0f5d-7632-bb5e-e8b9b1bb4f69" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_srt_RangeAxis_019fdbc1-0f5d-7632-bb5e-e8b9b1bb4f69" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019fdbc1-0f5d-7632-bb5e-e8b9b1bb4f69_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019fdbc1-0f5d-7632-bb5e-e8b9b1bb4f69" xlink:to="loc_srt_RangeMember_019fdbc1-0f5d-7632-bb5e-e8b9b1bb4f69_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019fdbc1-0f5d-744d-a08e-747d272e5af6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019fdbc1-0f5d-7632-bb5e-e8b9b1bb4f69" xlink:to="loc_srt_RangeMember_019fdbc1-0f5d-744d-a08e-747d272e5af6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019fdbc1-0f5d-7be7-bb45-ed4e01bc247d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019fdbc1-0f5d-744d-a08e-747d272e5af6" xlink:to="loc_srt_MinimumMember_019fdbc1-0f5d-7be7-bb45-ed4e01bc247d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019fdbc1-0f5d-78fd-b8bb-931eec9b2ee4" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019fdbc1-0f5d-744d-a08e-747d272e5af6" xlink:to="loc_srt_MaximumMember_019fdbc1-0f5d-78fd-b8bb-931eec9b2ee4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019fdbc1-0f5d-7f4b-8583-5a497ca40e12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-7f1c-9ac1-b9f2721af2bb" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019fdbc1-0f5d-7f4b-8583-5a497ca40e12" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fdbc1-0f5d-7f4b-8583-5a497ca40e12_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fdbc1-0f5d-7f4b-8583-5a497ca40e12" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fdbc1-0f5d-7f4b-8583-5a497ca40e12_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fdbc1-0f5d-7590-9a9d-03f2ff9011de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fdbc1-0f5d-7f4b-8583-5a497ca40e12" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fdbc1-0f5d-7590-9a9d-03f2ff9011de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019fdbc1-0f5d-7f23-92bd-1cbd63c02838" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019fdbc1-0f5d-7590-9a9d-03f2ff9011de" xlink:to="loc_us-gaap_SubsequentEventMember_019fdbc1-0f5d-7f23-92bd-1cbd63c02838" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockholdersEquityNoteProposedStockSplitConversionRatio_019f6cab-31bc-7934-934e-5b896c49b6a8" xlink:href="nvve-20260630.xsd#nvve_StockholdersEquityNoteProposedStockSplitConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_StockholdersEquityNoteProposedStockSplitConversionRatio_019f6cab-31bc-7934-934e-5b896c49b6a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019f6cab-31bc-76dd-b5ae-3b967ab6b1df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019f6cab-31bc-76dd-b5ae-3b967ab6b1df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NumberOfClassesOfStock_019f6cab-31bc-785b-a951-6a6c53a41f69" xlink:href="nvve-20260630.xsd#nvve_NumberOfClassesOfStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_NumberOfClassesOfStock_019f6cab-31bc-785b-a951-6a6c53a41f69" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AuthorizedCapitalStock_019f6cab-31bc-7f30-ba9a-30ce4f9d4391" xlink:href="nvve-20260630.xsd#nvve_AuthorizedCapitalStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_AuthorizedCapitalStock_019f6cab-31bc-7f30-ba9a-30ce4f9d4391" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019f6cab-31bc-77b9-ba1a-475c03e62862" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019f6cab-31bc-77b9-ba1a-475c03e62862" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019f6cab-31bc-75a6-a7dd-1661acf7cae9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019f6cab-31bc-75a6-a7dd-1661acf7cae9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019f6cab-31bc-742d-8ee0-70a87f6f4b19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019f6cab-31bc-742d-8ee0-70a87f6f4b19" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019f6cab-31bc-7caa-9ea9-5d8ed4dc7d4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019f6cab-31bc-7caa-9ea9-5d8ed4dc7d4d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PreferredStockStatedValuePerShare_019f6cab-31bc-7d3c-861f-791d5af5ac0e" xlink:href="nvve-20260630.xsd#nvve_PreferredStockStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_PreferredStockStatedValuePerShare_019f6cab-31bc-7d3c-861f-791d5af5ac0e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019f6cab-31bc-749f-a0e7-b6693a0e8b91" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_019f6cab-31bc-749f-a0e7-b6693a0e8b91" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019f6cab-31bc-7e89-8d41-c534c1e852a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019f6cab-31bc-7e89-8d41-c534c1e852a2" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_019f6cab-31bc-7d37-a128-595cacd99b10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_019f6cab-31bc-7d37-a128-595cacd99b10" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PreferredStockOriginalIssueDiscountRate_019f6cab-31bc-70b6-8db6-09be7dc83236" xlink:href="nvve-20260630.xsd#nvve_PreferredStockOriginalIssueDiscountRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_PreferredStockOriginalIssueDiscountRate_019f6cab-31bc-70b6-8db6-09be7dc83236" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockPreferenceStockAndWarrants_019f6cab-31bc-70cf-a149-6499890f3cef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockPreferenceStockAndWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockPreferenceStockAndWarrants_019f6cab-31bc-70cf-a149-6499890f3cef" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_019f6cab-31bc-7183-9c30-edd8b314000b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_019f6cab-31bc-7183-9c30-edd8b314000b" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquitySharesConversionOfConvertibleSecuritiesNetOfAccretion_019f6cab-31bc-7bdf-be80-18d9f20b7199" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquitySharesConversionOfConvertibleSecuritiesNetOfAccretion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_TemporaryEquitySharesConversionOfConvertibleSecuritiesNetOfAccretion_019f6cab-31bc-7bdf-be80-18d9f20b7199" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquityValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion_019f6cab-31bc-7358-a254-2986fd3a6573" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquityValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_TemporaryEquityValueConversionOfConvertibleSecuritiesNetOfIssuanceCostsAndAccretion_019f6cab-31bc-7358-a254-2986fd3a6573" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_019f6cab-31bc-7bad-b5d6-321fb622d2b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_019f6cab-31bc-7bad-b5d6-321fb622d2b3" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-31bc-7f6c-886d-60caa9b96363" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-31bc-7f6c-886d-60caa9b96363" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-31bc-7093-a4f0-b793a90296a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-31bc-7093-a4f0-b793a90296a5" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-31bc-739f-8e4c-9a3906d78ed2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-31bc-739f-8e4c-9a3906d78ed2" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized_019f6cab-31bc-7446-9190-e1442faa1cd6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized_019f6cab-31bc-7446-9190-e1442faa1cd6" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CommonUnitAnnualPreferredReturnPercentage_019f6cab-31bc-7c8b-aca1-9557170a0ba6" xlink:href="nvve-20260630.xsd#nvve_CommonUnitAnnualPreferredReturnPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_CommonUnitAnnualPreferredReturnPercentage_019f6cab-31bc-7c8b-aca1-9557170a0ba6" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitAuthorized_019f6cab-31bc-7fca-b2be-341842b4848b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_CommonUnitAuthorized_019f6cab-31bc-7fca-b2be-341842b4848b" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CommonUnitAnnualReturnAmount_019f6cab-31bc-7d82-92e2-2d2e7b11b17f" xlink:href="nvve-20260630.xsd#nvve_CommonUnitAnnualReturnAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_CommonUnitAnnualReturnAmount_019f6cab-31bc-7d82-92e2-2d2e7b11b17f" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NumberOfSubscribedMembers_019f6cab-31bc-7d9a-b91c-b2ccd52be2a2" xlink:href="nvve-20260630.xsd#nvve_NumberOfSubscribedMembers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_NumberOfSubscribedMembers_019f6cab-31bc-7d9a-b91c-b2ccd52be2a2" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitOutstanding_019f6cab-31bc-7f13-91f2-44a7d4c9290a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_CommonUnitOutstanding_019f6cab-31bc-7f13-91f2-44a7d4c9290a" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_CommonUnitPricePerUnit_019f6cab-31bc-7682-a175-f1b1ae68e854" xlink:href="nvve-20260630.xsd#nvve_CommonUnitPricePerUnit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_CommonUnitPricePerUnit_019f6cab-31bc-7682-a175-f1b1ae68e854" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare_019f6cab-31bc-7500-9fe0-bacc2d7225d4" xlink:href="nvve-20260630.xsd#nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare_019f6cab-31bc-7500-9fe0-bacc2d7225d4" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-31bc-7718-bf8a-024fa1352b82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-70bc-8fbc-3410c7af7a00" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-31bc-7718-bf8a-024fa1352b82" xlink:type="arc" order="29"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockholdersDeficitPreferredStockDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockholdersDeficitPreferredStockDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockholdersDeficitPreferredStockDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7006-9c91-1bb13626efdd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-77a8-8dd8-6bc92f628095" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7006-9c91-1bb13626efdd" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-77a8-8dd8-6bc92f628095" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7c14-a9de-27a30361b049" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-77a8-8dd8-6bc92f628095" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7c14-a9de-27a30361b049" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7c14-a9de-27a30361b049_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7c14-a9de-27a30361b049" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7c14-a9de-27a30361b049_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7422-b5d3-c09508000619" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7c14-a9de-27a30361b049" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7422-b5d3-c09508000619" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_019f6cab-31bc-7541-9863-710c76210ec1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7422-b5d3-c09508000619" xlink:to="loc_us-gaap_PreferredStockMember_019f6cab-31bc-7541-9863-710c76210ec1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bc-743c-90ef-6d8fa5d046f1" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7422-b5d3-c09508000619" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bc-743c-90ef-6d8fa5d046f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7006-9c91-1bb13626efdd" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019f6cab-31bc-780d-bc15-6b0c4fda3346" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019f6cab-31bc-780d-bc15-6b0c4fda3346" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_019f6cab-31bc-7411-995f-5dba7750259e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_us-gaap_PreferredStockSharesIssued_019f6cab-31bc-7411-995f-5dba7750259e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019f6cab-31bc-7fc4-82bf-3496b52d4ea1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_019f6cab-31bc-7fc4-82bf-3496b52d4ea1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PreferredStockStatedValuePerShare_019f6cab-31bc-7500-88f1-a121fee3ab46" xlink:href="nvve-20260630.xsd#nvve_PreferredStockStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_nvve_PreferredStockStatedValuePerShare_019f6cab-31bc-7500-88f1-a121fee3ab46" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_019ff0ac-33ee-74de-8711-64f1d13d8767" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValueOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_019ff0ac-33ee-74de-8711-64f1d13d8767" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockAmountOfPreferredDividendsInArrears_019ff0ac-b43c-799e-b395-8a64c660c7ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockAmountOfPreferredDividendsInArrears"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_us-gaap_PreferredStockAmountOfPreferredDividendsInArrears_019ff0ac-b43c-799e-b395-8a64c660c7ef" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019ff0ad-f6c4-7deb-8166-cd1ff66f8f0e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_019ff0ad-f6c4-7deb-8166-cd1ff66f8f0e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_019f6cab-31bc-75b9-bb03-cbdb5df8c989" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockLiquidationPreferenceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockAbstract_019feb5d-259e-740b-afae-6b0a55f8405b" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_019f6cab-31bc-75b9-bb03-cbdb5df8c989" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7006-9c91-1bb13626efdd" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesAuthorized_019f6cab-31bc-7627-ae0d-5c99385f3c97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_us-gaap_TemporaryEquitySharesAuthorized_019f6cab-31bc-7627-ae0d-5c99385f3c97" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesIssued_019f6cab-31bc-788b-946e-d2a78abd03b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_us-gaap_TemporaryEquitySharesIssued_019f6cab-31bc-788b-946e-d2a78abd03b0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-31bc-76ab-a9b3-28ea550dd866" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_019f6cab-31bc-76ab-a9b3-28ea550dd866" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquityStatedValuePerShare_019f6cab-31bc-7c3c-8d23-1d75e167d604" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquityStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_nvve_TemporaryEquityStatedValuePerShare_019f6cab-31bc-7c3c-8d23-1d75e167d604" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-31bc-7d35-8c81-3dd4b70cdd5c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_019f6cab-31bc-7d35-8c81-3dd4b70cdd5c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityAccretionOfDividends_019fde06-690b-7b8c-88db-c0a88410f4b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityAccretionOfDividends"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_us-gaap_TemporaryEquityAccretionOfDividends_019fde06-690b-7b8c-88db-c0a88410f4b5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TemporaryEquityCumulativeUnpaidAccruedDividends_019fde07-d502-7c92-8a98-3750b791a2a2" xlink:href="nvve-20260630.xsd#nvve_TemporaryEquityCumulativeUnpaidAccruedDividends"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_nvve_TemporaryEquityCumulativeUnpaidAccruedDividends_019fde07-d502-7c92-8a98-3750b791a2a2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityLiquidationPreference_019f6cab-31bc-7760-9a81-8bca7c3f716f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TemporaryEquityLiquidationPreference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_SeriesAConvertiblePreferredStockMezzanineEquityAbstract_019feb5d-aa01-7f89-aefc-66c830c171da" xlink:to="loc_us-gaap_TemporaryEquityLiquidationPreference_019f6cab-31bc-7760-9a81-8bca7c3f716f" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockholdersDeficitScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockholdersDeficitScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockholdersDeficitScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:href="nvve-20260630.xsd#nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingTable_019f6cab-31bc-72c9-8e70-6fab7a802590" xlink:href="nvve-20260630.xsd#nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingTable_019f6cab-31bc-72c9-8e70-6fab7a802590" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-31bc-71b4-963a-a180193dd05e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingTable_019f6cab-31bc-72c9-8e70-6fab7a802590" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-31bc-71b4-963a-a180193dd05e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-71b4-963a-a180193dd05e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-31bc-71b4-963a-a180193dd05e" xlink:to="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-71b4-963a-a180193dd05e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019f6cab-31bc-71b4-963a-a180193dd05e" xlink:to="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_July2022InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-78f1-ad79-6d97cbd6b10e" xlink:href="nvve-20260630.xsd#nvve_July2022InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_July2022InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-78f1-ad79-6d97cbd6b10e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_UnderwriterWarrantsFebruary2024OfferingMember_019f6cab-31bc-7dd9-a631-0cf81921ac50" xlink:href="nvve-20260630.xsd#nvve_UnderwriterWarrantsFebruary2024OfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_UnderwriterWarrantsFebruary2024OfferingMember_019f6cab-31bc-7dd9-a631-0cf81921ac50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesAMember_019f6cab-31bc-7919-ac05-4291d60ed578" xlink:href="nvve-20260630.xsd#nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesAMember_019f6cab-31bc-7919-ac05-4291d60ed578" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesCMember_019f6cab-31bc-793f-80d1-0bb6b128fd81" xlink:href="nvve-20260630.xsd#nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesCMember_019f6cab-31bc-793f-80d1-0bb6b128fd81" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_October2024InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7d61-97f3-dc98023d3c2f" xlink:href="nvve-20260630.xsd#nvve_October2024InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_October2024InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7d61-97f3-dc98023d3c2f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-73e6-883d-2bbb1e859aba" xlink:href="nvve-20260630.xsd#nvve_May2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-73e6-883d-2bbb1e859aba" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_July2025InstitutionalAccreditedInvestorPreFundedWarrantsMember_019f6cab-31bc-7146-9e7f-583842068d1d" xlink:href="nvve-20260630.xsd#nvve_July2025InstitutionalAccreditedInvestorPreFundedWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_July2025InstitutionalAccreditedInvestorPreFundedWarrantsMember_019f6cab-31bc-7146-9e7f-583842068d1d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_July2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-712d-97e0-59030991422e" xlink:href="nvve-20260630.xsd#nvve_July2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_July2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-712d-97e0-59030991422e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7185-8e0e-cb72ff053634" xlink:href="nvve-20260630.xsd#nvve_September2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7185-8e0e-cb72ff053634" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-701b-b684-de71c80bd242" xlink:href="nvve-20260630.xsd#nvve_November2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-701b-b684-de71c80bd242" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December172025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7786-9833-0a7e07fbea87" xlink:href="nvve-20260630.xsd#nvve_December172025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_December172025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7786-9833-0a7e07fbea87" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7375-9e80-13936c3fd450" xlink:href="nvve-20260630.xsd#nvve_December262025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_December262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7375-9e80-13936c3fd450" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7c2d-b696-b22178ba12d0" xlink:href="nvve-20260630.xsd#nvve_December302025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7c2d-b696-b22178ba12d0" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December2025InstitutionalAccreditedInvestorPreFundedWarrantsMember_019f6cab-31bc-754f-9d90-6c75af8a980b" xlink:href="nvve-20260630.xsd#nvve_December2025InstitutionalAccreditedInvestorPreFundedWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_December2025InstitutionalAccreditedInvestorPreFundedWarrantsMember_019f6cab-31bc-754f-9d90-6c75af8a980b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_January2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7dda-8c04-d1343bcb70e8" xlink:href="nvve-20260630.xsd#nvve_January2026InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_January2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7dda-8c04-d1343bcb70e8" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7623-9ddd-4edfff8324d2" xlink:href="nvve-20260630.xsd#nvve_February2026InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_February2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7623-9ddd-4edfff8324d2" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March62026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7adf-9bc1-a0f1494a4fda" xlink:href="nvve-20260630.xsd#nvve_March62026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_March62026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7adf-9bc1-a0f1494a4fda" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7e4c-828b-bde69e390b1e" xlink:href="nvve-20260630.xsd#nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7e4c-828b-bde69e390b1e" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fad7f-8cd6-769f-b9c0-68e4a84ef750" xlink:href="nvve-20260630.xsd#nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fad7f-8cd6-769f-b9c0-68e4a84ef750" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May72025Warrants1stTrancheMember_019f6cab-31bc-74d2-a773-d5d1b00c60c2" xlink:href="nvve-20260630.xsd#nvve_May72025Warrants1stTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_May72025Warrants1stTrancheMember_019f6cab-31bc-74d2-a773-d5d1b00c60c2" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May72025Warrants2ndTrancheMember_019f6cab-31bc-76b4-84d9-44f2e434f9ac" xlink:href="nvve-20260630.xsd#nvve_May72025Warrants2ndTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_May72025Warrants2ndTrancheMember_019f6cab-31bc-76b4-84d9-44f2e434f9ac" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May72025Warrants3rdTrancheMember_019f6cab-31bc-7654-a31e-2ee7e59da91e" xlink:href="nvve-20260630.xsd#nvve_May72025Warrants3rdTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_May72025Warrants3rdTrancheMember_019f6cab-31bc-7654-a31e-2ee7e59da91e" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May182025Warrants1stTrancheMember_019f6cab-31bc-71f0-910b-a4217f701d1f" xlink:href="nvve-20260630.xsd#nvve_May182025Warrants1stTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_May182025Warrants1stTrancheMember_019f6cab-31bc-71f0-910b-a4217f701d1f" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May182025Warrants2ndTrancheMember_019f6cab-31bc-75ba-ad27-d1ff0650d6e0" xlink:href="nvve-20260630.xsd#nvve_May182025Warrants2ndTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_May182025Warrants2ndTrancheMember_019f6cab-31bc-75ba-ad27-d1ff0650d6e0" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May182025Warrants3rdTrancheMember_019f6cab-31bc-76b9-85b6-cb0bf06f5d59" xlink:href="nvve-20260630.xsd#nvve_May182025Warrants3rdTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019f6cab-31bc-7e4b-96ff-3a921ef719ca" xlink:to="loc_nvve_May182025Warrants3rdTrancheMember_019f6cab-31bc-76b9-85b6-cb0bf06f5d59" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityOtherShares_019f6cab-31bc-757c-a132-6c2b606edf1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityOtherShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_us-gaap_StockholdersEquityOtherShares_019f6cab-31bc-757c-a132-6c2b606edf1f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ClassOfWarrantOrRightExercised_019f6cab-31bc-788f-8a94-d18468b82755" xlink:href="nvve-20260630.xsd#nvve_ClassOfWarrantOrRightExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_nvve_ClassOfWarrantOrRightExercised_019f6cab-31bc-788f-8a94-d18468b82755" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NumberOfWarrantsCancelled_019f6cab-31bc-7bec-895d-8b518234c1b2" xlink:href="nvve-20260630.xsd#nvve_NumberOfWarrantsCancelled"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_nvve_NumberOfWarrantsCancelled_019f6cab-31bc-7bec-895d-8b518234c1b2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ClassOfWarrantOrRightNumberOfWarrantsExercisable_019f6cab-31bc-70f9-a13c-d05cbb0f73b4" xlink:href="nvve-20260630.xsd#nvve_ClassOfWarrantOrRightNumberOfWarrantsExercisable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_nvve_ClassOfWarrantOrRightNumberOfWarrantsExercisable_019f6cab-31bc-70f9-a13c-d05cbb0f73b4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019f6cab-31bc-711a-a3a1-a937dc34b6f8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019f6cab-31bc-711a-a3a1-a937dc34b6f8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ClassOfWarrantOrRightAdjustedExercisePriceOfWarrantsOrRights_019f6cab-31bc-70ec-ae98-bcd8dea02a28" xlink:href="nvve-20260630.xsd#nvve_ClassOfWarrantOrRightAdjustedExercisePriceOfWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_nvve_ClassOfWarrantOrRightAdjustedExercisePriceOfWarrantsOrRights_019f6cab-31bc-70ec-ae98-bcd8dea02a28" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ClassOfWarrantOrRightAdjustedNumberOfWarrantsExercisable_019f6cab-31bc-7458-a50c-054afbd603b5" xlink:href="nvve-20260630.xsd#nvve_ClassOfWarrantOrRightAdjustedNumberOfWarrantsExercisable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_StockholdersEquityDetailsScheduleofcommonstockissuableuponexerciseofwarrantsoutstandingLineItems_019f6cab-31bc-7db8-b378-e366d815f48e" xlink:to="loc_nvve_ClassOfWarrantOrRightAdjustedNumberOfWarrantsExercisable_019f6cab-31bc-7458-a50c-054afbd603b5" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockholdersDeficitScheduleofPreferredUnitsDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockholdersDeficitScheduleofPreferredUnitsDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockholdersDeficitScheduleofPreferredUnitsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-73c8-939b-31bf0f2a4592" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-73c8-939b-31bf0f2a4592" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dae-99f4-0694d3de305e" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-73c8-939b-31bf0f2a4592" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dae-99f4-0694d3de305e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7dae-99f4-0694d3de305e_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dae-99f4-0694d3de305e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7dae-99f4-0694d3de305e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-75f4-9d8e-2c6df82a67d3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7dae-99f4-0694d3de305e" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-75f4-9d8e-2c6df82a67d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FermataEnergyIILLCMember_019f6cab-31bc-7e7a-9f23-9036f88215f4" xlink:href="nvve-20260630.xsd#nvve_FermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-75f4-9d8e-2c6df82a67d3" xlink:to="loc_nvve_FermataEnergyIILLCMember_019f6cab-31bc-7e7a-9f23-9036f88215f4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-70d2-9c6a-6fc5972b6241" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019f6cab-31bc-73c8-939b-31bf0f2a4592" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-70d2-9c6a-6fc5972b6241" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-70d2-9c6a-6fc5972b6241_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-70d2-9c6a-6fc5972b6241" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-70d2-9c6a-6fc5972b6241_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7cee-a8d4-17e1915a286c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-70d2-9c6a-6fc5972b6241" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7cee-a8d4-17e1915a286c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredClassAMember_019f6cab-31bc-7602-a8b8-b9155f19f80d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7cee-a8d4-17e1915a286c" xlink:to="loc_us-gaap_PreferredClassAMember_019f6cab-31bc-7602-a8b8-b9155f19f80d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized_019f6cab-31bc-7228-993d-e58acc387a19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitAuthorized_019f6cab-31bc-7228-993d-e58acc387a19" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-31bc-7096-9f7d-2ee70f4aa030" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-31bc-7096-9f7d-2ee70f4aa030" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-31bc-7b4a-b79d-a7306605c457" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-31bc-7b4a-b79d-a7306605c457" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare_019f6cab-31bc-7281-b752-a21c6d0065c8" xlink:href="nvve-20260630.xsd#nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitParOrStatedValuePerShare_019f6cab-31bc-7281-b752-a21c6d0065c8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssuanceValue_019f6cab-31bc-7fe4-8aca-0119e845f1bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssuanceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssuanceValue_019f6cab-31bc-7fe4-8aca-0119e845f1bf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitAmountOfPreferredDividendsInArrears_019f6cab-31bc-71b3-9255-9c4f94090e25" xlink:href="nvve-20260630.xsd#nvve_LimitedLiabilityCompanyLLCPreferredUnitAmountOfPreferredDividendsInArrears"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitAmountOfPreferredDividendsInArrears_019f6cab-31bc-71b3-9255-9c4f94090e25" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitDividendsPayable_019f6cab-31bc-75b4-ac07-e0bc32fdfc8a" xlink:href="nvve-20260630.xsd#nvve_LimitedLiabilityCompanyLLCPreferredUnitDividendsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitDividendsPayable_019f6cab-31bc-75b4-ac07-e0bc32fdfc8a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitLiquidationPreferenceValue_019f6cab-31bc-77c4-8b42-f6fe963fafea" xlink:href="nvve-20260630.xsd#nvve_LimitedLiabilityCompanyLLCPreferredUnitLiquidationPreferenceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019f6cab-31bc-7be0-b4f0-f78bc9c1d187" xlink:to="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitLiquidationPreferenceValue_019f6cab-31bc-77c4-8b42-f6fe963fafea" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockOptionPlanNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockOptionPlanNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockOptionPlanNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-749e-b6a2-ed062a0769fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-749e-b6a2-ed062a0769fe" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019f6cab-31bc-78cf-99e2-643106549818" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-749e-b6a2-ed062a0769fe" xlink:to="loc_us-gaap_PlanNameAxis_019f6cab-31bc-78cf-99e2-643106549818" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019f6cab-31bc-78cf-99e2-643106549818_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019f6cab-31bc-78cf-99e2-643106549818" xlink:to="loc_us-gaap_PlanNameDomain_019f6cab-31bc-78cf-99e2-643106549818_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019f6cab-31bc-71a6-83bb-8d62ff68daa6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019f6cab-31bc-78cf-99e2-643106549818" xlink:to="loc_us-gaap_PlanNameDomain_019f6cab-31bc-71a6-83bb-8d62ff68daa6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A2010PlanMember_019f6cab-31bc-77fa-b7e5-5000ac02eae0" xlink:href="nvve-20260630.xsd#nvve_A2010PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019f6cab-31bc-71a6-83bb-8d62ff68daa6" xlink:to="loc_nvve_A2010PlanMember_019f6cab-31bc-77fa-b7e5-5000ac02eae0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A2020PlanMember_019f6cab-31bc-7b27-a080-06c629e5b608" xlink:href="nvve-20260630.xsd#nvve_A2020PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019f6cab-31bc-71a6-83bb-8d62ff68daa6" xlink:to="loc_nvve_A2020PlanMember_019f6cab-31bc-7b27-a080-06c629e5b608" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7b93-bc72-bc1b0b6c54a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-749e-b6a2-ed062a0769fe" xlink:to="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7b93-bc72-bc1b0b6c54a6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7b93-bc72-bc1b0b6c54a6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7b93-bc72-bc1b0b6c54a6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7b93-bc72-bc1b0b6c54a6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f2b-92c4-9763ce7d8e66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7b93-bc72-bc1b0b6c54a6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f2b-92c4-9763ce7d8e66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019f6cab-31bc-710d-957d-0aea2cb03703" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f2b-92c4-9763ce7d8e66" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019f6cab-31bc-710d-957d-0aea2cb03703" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019f6cab-31bc-7659-bf9a-ba6416242044" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f2b-92c4-9763ce7d8e66" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019f6cab-31bc-7659-bf9a-ba6416242044" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_019f6cab-31bc-70c0-b512-3a399b5a4b1d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f2b-92c4-9763ce7d8e66" xlink:to="loc_us-gaap_RestrictedStockMember_019f6cab-31bc-70c0-b512-3a399b5a4b1d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-31bc-7d78-a4be-be1265ad4547" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-749e-b6a2-ed062a0769fe" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-31bc-7d78-a4be-be1265ad4547" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-31bc-7d78-a4be-be1265ad4547_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-31bc-7d78-a4be-be1265ad4547" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-31bc-7d78-a4be-be1265ad4547_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-31bc-778a-9d0f-a29bc0a67fe9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019f6cab-31bc-7d78-a4be-be1265ad4547" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-31bc-778a-9d0f-a29bc0a67fe9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019f6cab-31bc-7f9b-94bf-d4dd288cab54" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019f6cab-31bc-778a-9d0f-a29bc0a67fe9" xlink:to="loc_us-gaap_SubsequentEventMember_019f6cab-31bc-7f9b-94bf-d4dd288cab54" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_019f6cab-31bc-7253-9c33-10e7fea55def" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_019f6cab-31bc-7253-9c33-10e7fea55def" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019f6cab-31bc-7c35-9e7e-ab69a3e0bcc9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019f6cab-31bc-7c35-9e7e-ab69a3e0bcc9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_019f6cab-31bc-7115-ab99-2997acb814fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_019f6cab-31bc-7115-ab99-2997acb814fd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019f6cab-31bc-7651-bc4b-90530134b8e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019f6cab-31bc-7651-bc4b-90530134b8e1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriodAfterTerminationOfService_019f6cab-31bc-7fcf-9b0e-36c720333871" xlink:href="nvve-20260630.xsd#nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriodAfterTerminationOfService"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriodAfterTerminationOfService_019f6cab-31bc-7fcf-9b0e-36c720333871" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_IssuanceOfCommonStockAvailableForFuture_019f6cab-31bc-773e-a304-9c11addae3bc" xlink:href="nvve-20260630.xsd#nvve_IssuanceOfCommonStockAvailableForFuture"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_nvve_IssuanceOfCommonStockAvailableForFuture_019f6cab-31bc-773e-a304-9c11addae3bc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019f6cab-31bc-709c-91dc-5f1c12e8c985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019f6cab-31bc-709c-91dc-5f1c12e8c985" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019f6cab-31bc-7dc1-a60c-3e517cdef716" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019f6cab-31bc-7dc1-a60c-3e517cdef716" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019f6cab-31bc-73d2-8fbd-aea05fddba71" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-72ad-a70a-9f037288e75b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019f6cab-31bc-73d2-8fbd-aea05fddba71" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockOptionPlanScheduleofstockbasedcompensationexpenseforstockoptionsDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockOptionPlanScheduleofstockbasedcompensationexpenseforstockoptionsDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockOptionPlanScheduleofstockbasedcompensationexpenseforstockoptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019f6cab-31bc-7612-b5ca-eca60a3ed2bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019f6cab-31bc-74f6-9dc9-8c128b8be86d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019f6cab-31bc-7612-b5ca-eca60a3ed2bc" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019f6cab-31bc-74f6-9dc9-8c128b8be86d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019f6cab-31bc-74f6-9dc9-8c128b8be86d" xlink:to="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f29-a0b6-b5498efd96b5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f29-a0b6-b5498efd96b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7057-972d-bd2a91b41e55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7057-972d-bd2a91b41e55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019f6cab-31bc-75a3-9bb0-610c44176362" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7057-972d-bd2a91b41e55" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019f6cab-31bc-75a3-9bb0-610c44176362" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f6cab-31bc-7581-8f72-b3df51064df2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019f6cab-31bc-74f6-9dc9-8c128b8be86d" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f6cab-31bc-7581-8f72-b3df51064df2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019f6cab-31bc-704f-98ce-701023416554" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019f6cab-31bc-7612-b5ca-eca60a3ed2bc" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019f6cab-31bc-704f-98ce-701023416554" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockOptionPlanScheduleofstockbasedcompensationexpenseforstockoptionsDetails_1" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockOptionPlanScheduleofstockbasedcompensationexpenseforstockoptionsDetails_1"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockOptionPlanScheduleofstockbasedcompensationexpenseforstockoptionsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019f6cab-31bc-7612-b5ca-eca60a3ed2bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019f6cab-31bc-74f6-9dc9-8c128b8be86d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019f6cab-31bc-7612-b5ca-eca60a3ed2bc" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019f6cab-31bc-74f6-9dc9-8c128b8be86d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019f6cab-31bc-74f6-9dc9-8c128b8be86d" xlink:to="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f29-a0b6-b5498efd96b5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7f29-a0b6-b5498efd96b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7057-972d-bd2a91b41e55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019f6cab-31bc-7f29-a0b6-b5498efd96b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7057-972d-bd2a91b41e55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_019f6cab-31bc-75a3-9bb0-610c44176362" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019f6cab-31bc-7057-972d-bd2a91b41e55" xlink:to="loc_us-gaap_EmployeeStockOptionMember_019f6cab-31bc-75a3-9bb0-610c44176362" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019f6cab-31bc-704f-98ce-701023416554" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019f6cab-31bc-7612-b5ca-eca60a3ed2bc" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019f6cab-31bc-704f-98ce-701023416554" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/StockOptionPlanScheduleofstockoptionactivityDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#StockOptionPlanScheduleofstockoptionactivityDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/StockOptionPlanScheduleofstockoptionactivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-7465-8798-5b11bd76905a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-7465-8798-5b11bd76905a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019f6cab-31bc-7a8b-af3d-9a48b347d0ff" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019f6cab-31bc-7465-8798-5b11bd76905a" xlink:to="loc_us-gaap_PlanNameAxis_019f6cab-31bc-7a8b-af3d-9a48b347d0ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019f6cab-31bc-7a8b-af3d-9a48b347d0ff_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019f6cab-31bc-7a8b-af3d-9a48b347d0ff" xlink:to="loc_us-gaap_PlanNameDomain_019f6cab-31bc-7a8b-af3d-9a48b347d0ff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019f6cab-31bc-774f-8bfe-819e408cb0a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019f6cab-31bc-7a8b-af3d-9a48b347d0ff" xlink:to="loc_us-gaap_PlanNameDomain_019f6cab-31bc-774f-8bfe-819e408cb0a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A2010PlanMember_019f6cab-31bc-74a5-bb71-c85abb2419a2" xlink:href="nvve-20260630.xsd#nvve_A2010PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019f6cab-31bc-774f-8bfe-819e408cb0a8" xlink:to="loc_nvve_A2010PlanMember_019f6cab-31bc-74a5-bb71-c85abb2419a2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A2020PlanMember_019f6cab-31bc-7996-a438-526d4205a7dd" xlink:href="nvve-20260630.xsd#nvve_A2020PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019f6cab-31bc-774f-8bfe-819e408cb0a8" xlink:to="loc_nvve_A2020PlanMember_019f6cab-31bc-7996-a438-526d4205a7dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019f6cab-31bc-725a-8448-38da289a2ccf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019f6cab-31bc-725a-8448-38da289a2ccf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019f6cab-31bc-7f93-825b-8c5d0830733d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019f6cab-31bc-725a-8448-38da289a2ccf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019f6cab-31bc-7f93-825b-8c5d0830733d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_019f6cab-31bc-7daf-8db0-3f453634a1ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019f6cab-31bc-725a-8448-38da289a2ccf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_019f6cab-31bc-7daf-8db0-3f453634a1ec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019f6cab-31bc-770c-80ec-54a655f86863" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019f6cab-31bc-725a-8448-38da289a2ccf" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_019f6cab-31bc-770c-80ec-54a655f86863" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_019f6cab-31bc-7362-adf8-b9f803ad9b43" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019f6cab-31bc-725a-8448-38da289a2ccf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_019f6cab-31bc-7362-adf8-b9f803ad9b43" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_019f6cab-31bc-713b-87f4-6ad2ae02d1a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_019f6cab-31bc-725a-8448-38da289a2ccf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_019f6cab-31bc-713b-87f4-6ad2ae02d1a8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019f6cab-31bc-797a-9d78-25666479ce03" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_019f6cab-31bc-799f-a718-830f3a816470" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_019f6cab-31bc-799f-a718-830f3a816470" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_019f6cab-31bc-752a-8bc3-81f4998e75a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_019f6cab-31bc-752a-8bc3-81f4998e75a5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019f6cab-31bc-7da2-b666-67e0b79796c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019f6cab-31bc-7da2-b666-67e0b79796c5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_019f6cab-31bc-7ba4-8208-c2e1e1cb34cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019f6cab-31bc-7da2-b666-67e0b79796c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_019f6cab-31bc-7ba4-8208-c2e1e1cb34cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_019f6cab-31bc-7c1d-8f86-0fb21c3012d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019f6cab-31bc-7da2-b666-67e0b79796c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_019f6cab-31bc-7c1d-8f86-0fb21c3012d3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_019f6cab-31bc-7bf6-a039-b84af4451638" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019f6cab-31bc-7da2-b666-67e0b79796c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_019f6cab-31bc-7bf6-a039-b84af4451638" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_019f6cab-31bc-7bc7-bde8-a788c627a87e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019f6cab-31bc-7da2-b666-67e0b79796c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_019f6cab-31bc-7bc7-bde8-a788c627a87e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_019f6cab-31bc-71d6-a25e-f9c218518c83" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_019f6cab-31bc-7da2-b666-67e0b79796c5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_019f6cab-31bc-71d6-a25e-f9c218518c83" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_019f6cab-31bc-77e8-9fe3-1f3341f43658" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_019f6cab-31bc-7460-a859-043b0e1ad058" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_019f6cab-31bc-7460-a859-043b0e1ad058" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_019f6cab-31bc-7eea-bb1d-17ee5e720e3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice_019f6cab-31bc-7eea-bb1d-17ee5e720e3d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_019f6cab-31bc-7405-b1ae-afe2d7511813" xlink:href="nvve-20260630.xsd#nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_019f6cab-31bc-7405-b1ae-afe2d7511813" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_019f6cab-31bc-7273-8afb-1d24782f7ca4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_019f6cab-31bc-7405-b1ae-afe2d7511813" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_019f6cab-31bc-7273-8afb-1d24782f7ca4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_019f6cab-31bc-7f64-90f7-2eaf168feec9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_019f6cab-31bc-7405-b1ae-afe2d7511813" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_019f6cab-31bc-7f64-90f7-2eaf168feec9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_019f6cab-31bc-7164-b845-76e2a2b2de16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_019f6cab-31bc-7405-b1ae-afe2d7511813" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_019f6cab-31bc-7164-b845-76e2a2b2de16" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIntrinsicValueAbstract_019f6cab-31bc-7626-9eb7-2e4b7b4e251d" xlink:href="nvve-20260630.xsd#nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIntrinsicValueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019f6cab-31bc-7acd-a3c7-251d73b08802" xlink:to="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIntrinsicValueAbstract_019f6cab-31bc-7626-9eb7-2e4b7b4e251d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_019f6cab-31bc-7f72-aa2c-8c235282c75b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIntrinsicValueAbstract_019f6cab-31bc-7626-9eb7-2e4b7b4e251d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_019f6cab-31bc-7f72-aa2c-8c235282c75b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_019f6cab-31bc-723a-b971-6cc4561a2235" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIntrinsicValueAbstract_019f6cab-31bc-7626-9eb7-2e4b7b4e251d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_019f6cab-31bc-723a-b971-6cc4561a2235" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_019f6cab-31bc-7592-b11d-16f93600960d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIntrinsicValueAbstract_019f6cab-31bc-7626-9eb7-2e4b7b4e251d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue_019f6cab-31bc-7592-b11d-16f93600960d" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/NetLossPerShareAttributabletoCommonStockholdersScheduleofDilutedNetLossAttributabletoNuvvecommonstockholdersDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#NetLossPerShareAttributabletoCommonStockholdersScheduleofDilutedNetLossAttributabletoNuvvecommonstockholdersDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/NetLossPerShareAttributabletoCommonStockholdersScheduleofDilutedNetLossAttributabletoNuvvecommonstockholdersDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019f6cab-31bc-7387-a9c5-6a1d6b55edbc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019f6cab-31bc-74f0-9506-4cded6f3b154" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019f6cab-31bc-7387-a9c5-6a1d6b55edbc" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019f6cab-31bc-74f0-9506-4cded6f3b154" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f6cab-31bc-70d3-9a99-83f8ea61bb44" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019f6cab-31bc-74f0-9506-4cded6f3b154" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f6cab-31bc-70d3-9a99-83f8ea61bb44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-70d3-9a99-83f8ea61bb44_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f6cab-31bc-70d3-9a99-83f8ea61bb44" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-70d3-9a99-83f8ea61bb44_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019f6cab-31bc-70d3-9a99-83f8ea61bb44" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_StockOptionsMember_019f6cab-31bc-7d05-9089-20c0b896d134" xlink:href="nvve-20260630.xsd#nvve_StockOptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_StockOptionsMember_019f6cab-31bc-7d05-9089-20c0b896d134" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PublicWarrantsMember_019f6cab-31bc-7e1a-9237-f90501a79825" xlink:href="nvve-20260630.xsd#nvve_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_PublicWarrantsMember_019f6cab-31bc-7e1a-9237-f90501a79825" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PIPEWarrantsMember_019f6cab-31bc-785b-ab72-0d66b0f0ce2c" xlink:href="nvve-20260630.xsd#nvve_PIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_PIPEWarrantsMember_019f6cab-31bc-785b-ab72-0d66b0f0ce2c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_July2022InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7481-a992-1d3f914caca6" xlink:href="nvve-20260630.xsd#nvve_July2022InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_July2022InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7481-a992-1d3f914caca6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_UnderwriterWarrantsFebruary2024OfferingMember_019f6cab-31bc-7e17-9098-4cf2c266ddea" xlink:href="nvve-20260630.xsd#nvve_UnderwriterWarrantsFebruary2024OfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_UnderwriterWarrantsFebruary2024OfferingMember_019f6cab-31bc-7e17-9098-4cf2c266ddea" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesAMember_019f6cab-31bc-7bee-a8ec-a314501d73ea" xlink:href="nvve-20260630.xsd#nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesAMember_019f6cab-31bc-7bee-a8ec-a314501d73ea" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesCMember_019f6cab-31bc-7b17-a976-33a0b043694c" xlink:href="nvve-20260630.xsd#nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_February2024InstitutionalAccreditedInvestorWarrantsSeriesCMember_019f6cab-31bc-7b17-a976-33a0b043694c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_October2024InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7ee0-904b-adf58a9a98dd" xlink:href="nvve-20260630.xsd#nvve_October2024InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_October2024InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7ee0-904b-adf58a9a98dd" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December2024InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-76af-8a50-ba9a20a03a74" xlink:href="nvve-20260630.xsd#nvve_December2024InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_December2024InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-76af-8a50-ba9a20a03a74" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7b92-984a-38773357eebd" xlink:href="nvve-20260630.xsd#nvve_March2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_March2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7b92-984a-38773357eebd" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_April2025InstitutionalAccreditedInvestorWarrantsMember_019fb1b7-d526-7dde-8049-d3361c106358" xlink:href="nvve-20260630.xsd#nvve_April2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_April2025InstitutionalAccreditedInvestorWarrantsMember_019fb1b7-d526-7dde-8049-d3361c106358" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7dbf-9c44-56567097f0c6" xlink:href="nvve-20260630.xsd#nvve_May2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_May2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7dbf-9c44-56567097f0c6" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_July2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-73b7-923a-88ff7e7d2511" xlink:href="nvve-20260630.xsd#nvve_July2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_July2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-73b7-923a-88ff7e7d2511" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7f26-bf6e-e30efc574920" xlink:href="nvve-20260630.xsd#nvve_September2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_September2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7f26-bf6e-e30efc574920" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-78cb-baaa-8d5b7e9fa5fa" xlink:href="nvve-20260630.xsd#nvve_November2025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_November2025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-78cb-baaa-8d5b7e9fa5fa" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December172025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-76a6-983f-90f57f3a3569" xlink:href="nvve-20260630.xsd#nvve_December172025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_December172025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-76a6-983f-90f57f3a3569" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7d16-b0fa-006706b0b62c" xlink:href="nvve-20260630.xsd#nvve_December262025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_December262025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7d16-b0fa-006706b0b62c" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7633-b92d-a3c9e93987fc" xlink:href="nvve-20260630.xsd#nvve_December302025InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_December302025InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7633-b92d-a3c9e93987fc" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_December2025InstitutionalAccreditedInvestorPreFundedWarrantsMember_019f6cab-31bc-71b9-a86d-5b9d7257c6c6" xlink:href="nvve-20260630.xsd#nvve_December2025InstitutionalAccreditedInvestorPreFundedWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_December2025InstitutionalAccreditedInvestorPreFundedWarrantsMember_019f6cab-31bc-71b9-a86d-5b9d7257c6c6" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_January2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-703b-8392-a5376b987893" xlink:href="nvve-20260630.xsd#nvve_January2026InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_January2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-703b-8392-a5376b987893" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_February2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7336-8080-690383c26e22" xlink:href="nvve-20260630.xsd#nvve_February2026InstitutionalAccreditedInvestorWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_February2026InstitutionalAccreditedInvestorWarrantsMember_019f6cab-31bc-7336-8080-690383c26e22" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March62026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7c5f-9aa2-fd85099b8a54" xlink:href="nvve-20260630.xsd#nvve_March62026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_March62026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7c5f-9aa2-fd85099b8a54" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7635-92f4-e5795d6653c3" xlink:href="nvve-20260630.xsd#nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_March272026InstitutionalAccreditedInvestorPIPEWarrantsMember_019f6cab-31bc-7635-92f4-e5795d6653c3" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fad91-a3c7-748b-b671-e13a9211f59f" xlink:href="nvve-20260630.xsd#nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_April132026InstitutionalAccreditedInvestorPIPEWarrantsMember_019fad91-a3c7-748b-b671-e13a9211f59f" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May2025ConsultingWarrants1stTrancheMember_019f6cab-31bc-7669-b9f2-1405f6b65ed9" xlink:href="nvve-20260630.xsd#nvve_May2025ConsultingWarrants1stTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_May2025ConsultingWarrants1stTrancheMember_019f6cab-31bc-7669-b9f2-1405f6b65ed9" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_May2025ConsultingWarrants2ndTrancheMember_019f6cab-31bc-7931-9856-a418307956e0" xlink:href="nvve-20260630.xsd#nvve_May2025ConsultingWarrants2ndTrancheMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_nvve_May2025ConsultingWarrants2ndTrancheMember_019f6cab-31bc-7931-9856-a418307956e0" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_019f6cab-31bc-7e82-963e-ae050b505d5b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019f6cab-31bc-7059-a4be-5273aaccd968" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_019f6cab-31bc-7e82-963e-ae050b505d5b" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019f6cab-31bc-7a71-be94-c32991a5c890" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019f6cab-31bc-7387-a9c5-6a1d6b55edbc" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019f6cab-31bc-7a71-be94-c32991a5c890" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/RelatedPartiesDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#RelatedPartiesDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/RelatedPartiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bc-7aee-8dc1-0e92ba78ddd0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bc-7aee-8dc1-0e92ba78ddd0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019f6cab-31bc-7aee-8dc1-0e92ba78ddd0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bc-7aee-8dc1-0e92ba78ddd0" xlink:to="loc_us-gaap_RelatedPartyDomain_019f6cab-31bc-7aee-8dc1-0e92ba78ddd0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019f6cab-31bc-7ab8-92bc-ec9e74a976bd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bc-7aee-8dc1-0e92ba78ddd0" xlink:to="loc_us-gaap_RelatedPartyDomain_019f6cab-31bc-7ab8-92bc-ec9e74a976bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019f6cab-31bc-7bbb-bac1-c92043699d50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019f6cab-31bc-7ab8-92bc-ec9e74a976bd" xlink:to="loc_us-gaap_RelatedPartyMember_019f6cab-31bc-7bbb-bac1-c92043699d50" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember_019f6cab-31bc-7df2-828a-ca8a644d6089" xlink:href="nvve-20260630.xsd#nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019f6cab-31bc-7ab8-92bc-ec9e74a976bd" xlink:to="loc_nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember_019f6cab-31bc-7df2-828a-ca8a644d6089" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_019f6cab-31bc-7a12-ac51-b5361ae92733" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_srt_TitleOfIndividualAxis_019f6cab-31bc-7a12-ac51-b5361ae92733" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f6cab-31bc-7a12-ac51-b5361ae92733_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_019f6cab-31bc-7a12-ac51-b5361ae92733" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f6cab-31bc-7a12-ac51-b5361ae92733_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f6cab-31bc-7552-9697-4b9e30e75e1f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_019f6cab-31bc-7a12-ac51-b5361ae92733" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f6cab-31bc-7552-9697-4b9e30e75e1f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember_019f6cab-31bc-7bdf-84d9-079dfc0d20d9" xlink:href="nvve-20260630.xsd#nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f6cab-31bc-7552-9697-4b9e30e75e1f" xlink:to="loc_nvve_ChiefExecutiveOfficerAndChiefFinancialOfficerMember_019f6cab-31bc-7bdf-84d9-079dfc0d20d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember_019f6cab-31bc-7bed-95c9-ed606e7139a3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f6cab-31bc-7552-9697-4b9e30e75e1f" xlink:to="loc_srt_ChiefExecutiveOfficerMember_019f6cab-31bc-7bed-95c9-ed606e7139a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefFinancialOfficerMember_019f6cab-31bc-7fe1-9df8-970c7f572edf" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ChiefFinancialOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019f6cab-31bc-7552-9697-4b9e30e75e1f" xlink:to="loc_srt_ChiefFinancialOfficerMember_019f6cab-31bc-7fe1-9df8-970c7f572edf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-75f3-84cd-c531b74ebf72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-75f3-84cd-c531b74ebf72" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-75f3-84cd-c531b74ebf72_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-75f3-84cd-c531b74ebf72" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-75f3-84cd-c531b74ebf72_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-70fb-9ad5-b4c40622abc2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019f6cab-31bc-75f3-84cd-c531b74ebf72" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-70fb-9ad5-b4c40622abc2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019f6cab-31bc-76fa-bbc7-72f700e078be" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesIssuedOnAugust162024Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-70fb-9ad5-b4c40622abc2" xlink:to="loc_nvve_PromissoryNotesIssuedOnAugust162024Member_019f6cab-31bc-76fa-bbc7-72f700e078be" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019f6cab-31bc-7cbc-98e5-c6a56de0b60c" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesFermataEnergyIILLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019f6cab-31bc-70fb-9ad5-b4c40622abc2" xlink:to="loc_nvve_PromissoryNotesFermataEnergyIILLCMember_019f6cab-31bc-7cbc-98e5-c6a56de0b60c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019f6cab-31bc-7b16-8921-48a921ecfd4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019f6cab-31bc-7b16-8921-48a921ecfd4c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f6cab-31bc-7b16-8921-48a921ecfd4c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f6cab-31bc-7b16-8921-48a921ecfd4c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f6cab-31bc-7b16-8921-48a921ecfd4c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019f6cab-31bc-7b17-a649-0921b08a8442" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019f6cab-31bc-7b16-8921-48a921ecfd4c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019f6cab-31bc-7b17-a649-0921b08a8442" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PromissoryNotesMember_019f6cab-31bc-7915-9574-76f3e018701d" xlink:href="nvve-20260630.xsd#nvve_PromissoryNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019f6cab-31bc-7b17-a649-0921b08a8442" xlink:to="loc_nvve_PromissoryNotesMember_019f6cab-31bc-7915-9574-76f3e018701d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7fa6-822f-7648c8d0cd8a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7fa6-822f-7648c8d0cd8a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7fa6-822f-7648c8d0cd8a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7fa6-822f-7648c8d0cd8a" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7fa6-822f-7648c8d0cd8a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7292-8c3a-e6a12b0146ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bc-7fa6-822f-7648c8d0cd8a" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7292-8c3a-e6a12b0146ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredClassAMember_019f6cab-31bc-76a4-b46f-0019e57825c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7292-8c3a-e6a12b0146ae" xlink:to="loc_us-gaap_PreferredClassAMember_019f6cab-31bc-76a4-b46f-0019e57825c6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_JKissMember_019f6cab-31bc-75ce-8efc-3b47f504bfff" xlink:href="nvve-20260630.xsd#nvve_JKissMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bc-7292-8c3a-e6a12b0146ae" xlink:to="loc_nvve_JKissMember_019f6cab-31bc-75ce-8efc-3b47f504bfff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-31bc-703f-a878-69bd0e6103ca" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-31bc-703f-a878-69bd0e6103ca" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-31bc-703f-a878-69bd0e6103ca_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-31bc-703f-a878-69bd0e6103ca" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-31bc-703f-a878-69bd0e6103ca_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-31bc-728d-9025-cd3ff928f346" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_019f6cab-31bc-703f-a878-69bd0e6103ca" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-31bc-728d-9025-cd3ff928f346" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LoanReceivableAgreementMember_019f6cab-31bc-7ce3-a95d-0c90f0722996" xlink:href="nvve-20260630.xsd#nvve_LoanReceivableAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_019f6cab-31bc-728d-9025-cd3ff928f346" xlink:to="loc_nvve_LoanReceivableAgreementMember_019f6cab-31bc-7ce3-a95d-0c90f0722996" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7b60-9ccf-6be66a419587" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7b60-9ccf-6be66a419587" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7b60-9ccf-6be66a419587_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7b60-9ccf-6be66a419587" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7b60-9ccf-6be66a419587_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7e08-a4c6-11a6e693fe94" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019f6cab-31bc-7b60-9ccf-6be66a419587" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7e08-a4c6-11a6e693fe94" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AggregationV2GLLCMember_019f6cab-31bc-75bc-9a8a-88d49143a399" xlink:href="nvve-20260630.xsd#nvve_AggregationV2GLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7e08-a4c6-11a6e693fe94" xlink:to="loc_nvve_AggregationV2GLLCMember_019f6cab-31bc-75bc-9a8a-88d49143a399" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NuvveJapanMember_019f6cab-31bc-7498-b65f-a9faf8e7d56a" xlink:href="nvve-20260630.xsd#nvve_NuvveJapanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_019f6cab-31bc-7e08-a4c6-11a6e693fe94" xlink:to="loc_nvve_NuvveJapanMember_019f6cab-31bc-7498-b65f-a9faf8e7d56a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019f6cab-31bc-7390-b7ab-62d8d0a50307" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_srt_OwnershipAxis_019f6cab-31bc-7390-b7ab-62d8d0a50307" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-31bc-7390-b7ab-62d8d0a50307_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019f6cab-31bc-7390-b7ab-62d8d0a50307" xlink:to="loc_srt_OwnershipDomain_019f6cab-31bc-7390-b7ab-62d8d0a50307_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-31bc-7b66-afbe-6c1770398130" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019f6cab-31bc-7390-b7ab-62d8d0a50307" xlink:to="loc_srt_OwnershipDomain_019f6cab-31bc-7b66-afbe-6c1770398130" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AggregationV2GLLCMember_019f6cab-31bc-7864-a9cb-db70a0557af9" xlink:href="nvve-20260630.xsd#nvve_AggregationV2GLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-31bc-7b66-afbe-6c1770398130" xlink:to="loc_nvve_AggregationV2GLLCMember_019f6cab-31bc-7864-a9cb-db70a0557af9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019feb5e-c15c-7ce9-9b4e-544b28d2047c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019f6cab-31bc-742b-b5f1-1f4340a17bfa" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019feb5e-c15c-7ce9-9b4e-544b28d2047c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019feb5e-c15c-7ce9-9b4e-544b28d2047c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019feb5e-c15c-7ce9-9b4e-544b28d2047c" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019feb5e-c15c-7ce9-9b4e-544b28d2047c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019feb5e-c15c-72ac-b041-93d6f2a55e6e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019feb5e-c15c-7ce9-9b4e-544b28d2047c" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019feb5e-c15c-72ac-b041-93d6f2a55e6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019feb5e-e6bd-703e-ab78-535d19a43810" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019feb5e-c15c-72ac-b041-93d6f2a55e6e" xlink:to="loc_us-gaap_SubsequentEventMember_019feb5e-e6bd-703e-ab78-535d19a43810" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-31bc-7098-a39a-63f5db1eeaf8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-31bc-7098-a39a-63f5db1eeaf8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019f6cab-31bc-7dd3-ba53-3e0f742563fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019f6cab-31bc-7dd3-ba53-3e0f742563fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019f6cab-31bc-79c1-941f-aaa213e07106" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019f6cab-31bc-79c1-941f-aaa213e07106" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FundedAmount_019f6cab-31bc-79c3-8e62-209b50b8e345" xlink:href="nvve-20260630.xsd#nvve_FundedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_nvve_FundedAmount_019f6cab-31bc-79c3-8e62-209b50b8e345" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_019f6cab-31bc-7cf0-ba07-f8c0e7b67230" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_RepaymentsOfDebt_019f6cab-31bc-7cf0-ba07-f8c0e7b67230" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_019f6cab-31bc-7c72-b164-65717f9691ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_InterestExpenseDebt_019f6cab-31bc-7c72-b164-65717f9691ec" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitTransferred_019f6cab-31bc-7e2f-8b92-120febeae35e" xlink:href="nvve-20260630.xsd#nvve_LimitedLiabilityCompanyLLCPreferredUnitTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_nvve_LimitedLiabilityCompanyLLCPreferredUnitTransferred_019f6cab-31bc-7e2f-8b92-120febeae35e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_EquityMethodInvestmentOwnershipPercentageTransferred_019f6cab-31bc-7bf5-a3e2-14e145604a79" xlink:href="nvve-20260630.xsd#nvve_EquityMethodInvestmentOwnershipPercentageTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_nvve_EquityMethodInvestmentOwnershipPercentageTransferred_019f6cab-31bc-7bf5-a3e2-14e145604a79" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-31bc-7feb-8572-d64097c1f6a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitOutstanding_019f6cab-31bc-7feb-8572-d64097c1f6a0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019f6cab-31bc-7203-9046-4280d981a08e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_019f6cab-31bc-7203-9046-4280d981a08e" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-31bc-77ac-bd33-ddaae023dc4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_LimitedLiabilityCompanyLLCPreferredUnitIssued_019f6cab-31bc-77ac-bd33-ddaae023dc4f" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_IssuanceOfStockOptionsInExchangeForLoanReceivable_019f6cab-31bc-76f8-93b9-0a3febf54bb9" xlink:href="nvve-20260630.xsd#nvve_IssuanceOfStockOptionsInExchangeForLoanReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_nvve_IssuanceOfStockOptionsInExchangeForLoanReceivable_019f6cab-31bc-76f8-93b9-0a3febf54bb9" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionRate_019f6cab-31bc-703a-a48b-5141fb294ec5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019f6cab-31bc-7ec9-9dcd-5e6d2238285c" xlink:to="loc_us-gaap_RelatedPartyTransactionRate_019f6cab-31bc-703a-a48b-5141fb294ec5" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/LeasesLeasecostDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#LeasesLeasecostDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/LeasesLeasecostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bc-7176-85a7-70baeab6a749" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bc-7176-85a7-70baeab6a749" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f6cab-31bc-7ce4-a09e-bbfbbec80137" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bc-7176-85a7-70baeab6a749" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f6cab-31bc-7ce4-a09e-bbfbbec80137" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019f6cab-31bc-7e1e-9ade-4d826f71713a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019f6cab-31bc-7e1e-9ade-4d826f71713a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_019f6cab-31bc-7eb5-a00f-a91401edef18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_019f6cab-31bc-7eb5-a00f-a91401edef18" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7242-9a3f-a1d6bf3ca52e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7242-9a3f-a1d6bf3ca52e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OperatingAndFinanceLeaseRightOfUseAssets_019f6cab-31bc-7979-be34-4fc1ec4e174c" xlink:href="nvve-20260630.xsd#nvve_OperatingAndFinanceLeaseRightOfUseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_nvve_OperatingAndFinanceLeaseRightOfUseAssets_019f6cab-31bc-7979-be34-4fc1ec4e174c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019f6cab-31bc-7d1f-b51d-80a4f2329e45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019f6cab-31bc-7d1f-b51d-80a4f2329e45" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019f6cab-31bc-7c33-a1b1-ae150a5c27e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019f6cab-31bc-7c33-a1b1-ae150a5c27e3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_019f6cab-31bc-7234-b37e-e4623678ba05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_019f6cab-31bc-7234-b37e-e4623678ba05" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7510-b161-0bf289a95af8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7510-b161-0bf289a95af8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OperatingAndFinanceLeaseLiability_019f6cab-31bc-7c11-9985-9e5f3c2eb14b" xlink:href="nvve-20260630.xsd#nvve_OperatingAndFinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_nvve_OperatingAndFinanceLeaseLiability_019f6cab-31bc-7c11-9985-9e5f3c2eb14b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_019f6cab-31bc-793b-9717-a9fc234cea12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseCost_019f6cab-31bc-793b-9717-a9fc234cea12" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019f6cab-31bc-772b-b370-04a533517893" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019f6cab-31bc-772b-b370-04a533517893" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_019f6cab-31bc-7dcf-b9a9-3b492da0ebd2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_019f6cab-31bc-7dcf-b9a9-3b492da0ebd2" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019f6cab-31bc-75b4-8be8-d5d85f2ab544" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_LeaseCost_019f6cab-31bc-75b4-8be8-d5d85f2ab544" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/LeasesLeasecostDetails_1" xlink:type="simple" xlink:href="nvve-20260630.xsd#LeasesLeasecostDetails_1"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/LeasesLeasecostDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bc-7176-85a7-70baeab6a749" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bc-7176-85a7-70baeab6a749" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019f6cab-31bc-7e1e-9ade-4d826f71713a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019f6cab-31bc-7e1e-9ade-4d826f71713a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_019f6cab-31bc-7eb5-a00f-a91401edef18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_019f6cab-31bc-7eb5-a00f-a91401edef18" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7242-9a3f-a1d6bf3ca52e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7242-9a3f-a1d6bf3ca52e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OperatingAndFinanceLeaseRightOfUseAssets_019f6cab-31bc-7979-be34-4fc1ec4e174c" xlink:href="nvve-20260630.xsd#nvve_OperatingAndFinanceLeaseRightOfUseAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_nvve_OperatingAndFinanceLeaseRightOfUseAssets_019f6cab-31bc-7979-be34-4fc1ec4e174c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019f6cab-31bc-7d1f-b51d-80a4f2329e45" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019f6cab-31bc-7d1f-b51d-80a4f2329e45" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019f6cab-31bc-7c33-a1b1-ae150a5c27e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019f6cab-31bc-7c33-a1b1-ae150a5c27e3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_019f6cab-31bc-7234-b37e-e4623678ba05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_019f6cab-31bc-7234-b37e-e4623678ba05" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7510-b161-0bf289a95af8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList_019f6cab-31bc-7510-b161-0bf289a95af8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OperatingAndFinanceLeaseLiability_019f6cab-31bc-7c11-9985-9e5f3c2eb14b" xlink:href="nvve-20260630.xsd#nvve_OperatingAndFinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_nvve_OperatingAndFinanceLeaseLiability_019f6cab-31bc-7c11-9985-9e5f3c2eb14b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_019f6cab-31bc-793b-9717-a9fc234cea12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_OperatingLeaseCost_019f6cab-31bc-793b-9717-a9fc234cea12" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019f6cab-31bc-772b-b370-04a533517893" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_019f6cab-31bc-772b-b370-04a533517893" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_019f6cab-31bc-7dcf-b9a9-3b492da0ebd2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_019f6cab-31bc-7dcf-b9a9-3b492da0ebd2" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019f6cab-31bc-75b4-8be8-d5d85f2ab544" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bc-7839-8dc3-8543641c9e2c" xlink:to="loc_us-gaap_LeaseCost_019f6cab-31bc-75b4-8be8-d5d85f2ab544" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/LeasesSubleaseDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#LeasesSubleaseDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/LeasesSubleaseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7228-bb0e-912fa3b6010e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7228-bb0e-912fa3b6010e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7228-bb0e-912fa3b6010e" xlink:to="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-31bd-7313-847f-19fe3f7e7628_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:to="loc_srt_RangeMember_019f6cab-31bd-7313-847f-19fe3f7e7628_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:to="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019f6cab-31bd-76a1-b3e5-62c86c7d74a7" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:to="loc_srt_MinimumMember_019f6cab-31bd-76a1-b3e5-62c86c7d74a7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f6cab-31bd-791d-97e3-5ef6d6ef8dd2" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:to="loc_srt_MaximumMember_019f6cab-31bd-791d-97e3-5ef6d6ef8dd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f6cab-31bd-7b90-82a8-e74fce78fef5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7228-bb0e-912fa3b6010e" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019f6cab-31bd-7b90-82a8-e74fce78fef5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NetAreaSubleased_019f6cab-31bd-7a55-affe-16fc2fbecd92" xlink:href="nvve-20260630.xsd#nvve_NetAreaSubleased"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_nvve_NetAreaSubleased_019f6cab-31bd-7a55-affe-16fc2fbecd92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LesseeSubleaseTerm_019f6cab-31bd-77d8-ad0a-546aaa4948ae" xlink:href="nvve-20260630.xsd#nvve_LesseeSubleaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_nvve_LesseeSubleaseTerm_019f6cab-31bd-77d8-ad0a-546aaa4948ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SubleaseMonthlyRentalAmount_019f6cab-31bd-726a-9e56-b0f694165873" xlink:href="nvve-20260630.xsd#nvve_SubleaseMonthlyRentalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_nvve_SubleaseMonthlyRentalAmount_019f6cab-31bd-726a-9e56-b0f694165873" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubleaseIncome_019f6cab-31bd-73fa-b014-b7dea76ec05e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubleaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_us-gaap_SubleaseIncome_019f6cab-31bd-73fa-b014-b7dea76ec05e" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/LeasesSubleaseDetails_1" xlink:type="simple" xlink:href="nvve-20260630.xsd#LeasesSubleaseDetails_1"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/LeasesSubleaseDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7228-bb0e-912fa3b6010e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7228-bb0e-912fa3b6010e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7228-bb0e-912fa3b6010e" xlink:to="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-31bd-7313-847f-19fe3f7e7628_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:to="loc_srt_RangeMember_019f6cab-31bd-7313-847f-19fe3f7e7628_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019f6cab-31bd-7313-847f-19fe3f7e7628" xlink:to="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019f6cab-31bd-76a1-b3e5-62c86c7d74a7" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:to="loc_srt_MinimumMember_019f6cab-31bd-76a1-b3e5-62c86c7d74a7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019f6cab-31bd-791d-97e3-5ef6d6ef8dd2" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019f6cab-31bd-7c4e-8f1d-a90a71158d54" xlink:to="loc_srt_MaximumMember_019f6cab-31bd-791d-97e3-5ef6d6ef8dd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NetAreaSubleased_019f6cab-31bd-7a55-affe-16fc2fbecd92" xlink:href="nvve-20260630.xsd#nvve_NetAreaSubleased"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_nvve_NetAreaSubleased_019f6cab-31bd-7a55-affe-16fc2fbecd92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LesseeSubleaseTerm_019f6cab-31bd-77d8-ad0a-546aaa4948ae" xlink:href="nvve-20260630.xsd#nvve_LesseeSubleaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_nvve_LesseeSubleaseTerm_019f6cab-31bd-77d8-ad0a-546aaa4948ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SubleaseMonthlyRentalAmount_019f6cab-31bd-726a-9e56-b0f694165873" xlink:href="nvve-20260630.xsd#nvve_SubleaseMonthlyRentalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_nvve_SubleaseMonthlyRentalAmount_019f6cab-31bd-726a-9e56-b0f694165873" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubleaseIncome_019f6cab-31bd-73fa-b014-b7dea76ec05e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubleaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-74ae-b3ba-57becbf14000" xlink:to="loc_us-gaap_SubleaseIncome_019f6cab-31bd-73fa-b014-b7dea76ec05e" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/LeasesLessorDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#LeasesLessorDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/LeasesLessorDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7511-a365-63197b8ab138" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7511-a365-63197b8ab138" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-31bd-72e0-b062-1936f326adfa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_019f6cab-31bd-7511-a365-63197b8ab138" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-31bd-72e0-b062-1936f326adfa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-31bd-72e0-b062-1936f326adfa_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-31bd-72e0-b062-1936f326adfa" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-31bd-72e0-b062-1936f326adfa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-31bd-7d4d-a717-bb6f711c10d3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019f6cab-31bd-72e0-b062-1936f326adfa" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-31bd-7d4d-a717-bb6f711c10d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_MasterServicesAgreementMember_019f6cab-31bd-71e9-92aa-421220c1fa76" xlink:href="nvve-20260630.xsd#nvve_MasterServicesAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019f6cab-31bd-7d4d-a717-bb6f711c10d3" xlink:to="loc_nvve_MasterServicesAgreementMember_019f6cab-31bd-71e9-92aa-421220c1fa76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019f6cab-31bd-73f3-8ab2-c2983ba92c4d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_019f6cab-31bd-73f3-8ab2-c2983ba92c4d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019f6cab-31bd-7ee6-9877-7c5072207c35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetInvestmentInLeaseNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:to="loc_us-gaap_NetInvestmentInLeaseNoncurrent_019f6cab-31bd-7ee6-9877-7c5072207c35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome_019f6cab-31bd-7a31-ad6c-9443325c1c99" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:to="loc_us-gaap_OperatingLeaseLeaseIncome_019f6cab-31bd-7a31-ad6c-9443325c1c99" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseIncomeComprehensiveIncomeExtensibleList_019f6cab-31bd-7e2b-8918-92d0fffb9e24" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseIncomeComprehensiveIncomeExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:to="loc_us-gaap_OperatingLeaseIncomeComprehensiveIncomeExtensibleList_019f6cab-31bd-7e2b-8918-92d0fffb9e24" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperating_019f6cab-31bd-7852-94cf-53b5a59b780b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:to="loc_us-gaap_InterestIncomeOperating_019f6cab-31bd-7852-94cf-53b5a59b780b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseIncome_019f6cab-31bd-7b4d-ae5b-355317ecd322" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_019f6cab-31bd-7b6e-87b9-218bcdbbdee7" xlink:to="loc_us-gaap_LeaseIncome_019f6cab-31bd-7b4d-ae5b-355317ecd322" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#CommitmentsandContingenciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable_019f6cab-31bd-78cb-87b7-8a580e6a2b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_OtherCommitmentsTable_019f6cab-31bd-78cb-87b7-8a580e6a2b6c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-77f5-9b6d-2d8e88c8b731" xlink:href="nvve-20260630.xsd#nvve_TypesOfAgreementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_019f6cab-31bd-78cb-87b7-8a580e6a2b6c" xlink:to="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-77f5-9b6d-2d8e88c8b731" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-77f5-9b6d-2d8e88c8b731_default" xlink:href="nvve-20260630.xsd#nvve_TypesOfAgreementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-77f5-9b6d-2d8e88c8b731" xlink:to="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-77f5-9b6d-2d8e88c8b731_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-748d-aa74-8b39a813d01f" xlink:href="nvve-20260630.xsd#nvve_TypesOfAgreementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-77f5-9b6d-2d8e88c8b731" xlink:to="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-748d-aa74-8b39a813d01f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_IPAcquisitionAgreementMember_019f6cab-31bd-79df-8531-3a6440ca6ca5" xlink:href="nvve-20260630.xsd#nvve_IPAcquisitionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-748d-aa74-8b39a813d01f" xlink:to="loc_nvve_IPAcquisitionAgreementMember_019f6cab-31bd-79df-8531-3a6440ca6ca5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bd-704a-9cfe-2bd93c261c84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_019f6cab-31bd-78cb-87b7-8a580e6a2b6c" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bd-704a-9cfe-2bd93c261c84" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019f6cab-31bd-704a-9cfe-2bd93c261c84_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bd-704a-9cfe-2bd93c261c84" xlink:to="loc_us-gaap_RelatedPartyDomain_019f6cab-31bd-704a-9cfe-2bd93c261c84_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019f6cab-31bd-7b03-addf-ebcbfe351568" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019f6cab-31bd-704a-9cfe-2bd93c261c84" xlink:to="loc_us-gaap_RelatedPartyDomain_019f6cab-31bd-7b03-addf-ebcbfe351568" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019f6cab-31bd-7942-88e9-af93ad1e0968" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019f6cab-31bd-7b03-addf-ebcbfe351568" xlink:to="loc_us-gaap_RelatedPartyMember_019f6cab-31bd-7942-88e9-af93ad1e0968" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid_019f6cab-31bd-7b3d-bae6-134b6edd43c2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid_019f6cab-31bd-7b3d-bae6-134b6edd43c2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_019f6cab-31bd-7a15-812f-ae6fa0d7e0c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_ContractWithCustomerLiability_019f6cab-31bd-7a15-812f-ae6fa0d7e0c3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019f6cab-31bd-78be-bb98-05daf95a2d67" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019f6cab-31bd-78be-bb98-05daf95a2d67" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RoyaltyExpenseAggregateAmountUnderAgreement_019f6cab-31bd-7fcb-91ad-7aec473f3aa7" xlink:href="nvve-20260630.xsd#nvve_RoyaltyExpenseAggregateAmountUnderAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_RoyaltyExpenseAggregateAmountUnderAgreement_019f6cab-31bd-7fcb-91ad-7aec473f3aa7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RoyaltyExpense_019f6cab-31bd-76e6-859d-716143cf2043" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RoyaltyExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_RoyaltyExpense_019f6cab-31bd-76e6-859d-716143cf2043" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionUpfrontPayment_019f6cab-31bd-78b1-b49f-441c517a278e" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionUpfrontPayment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_AssetAcquisitionUpfrontPayment_019f6cab-31bd-78b1-b49f-441c517a278e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionConsiderationTransferredEquityInterestsIssuedAndIssuable_019f6cab-31bd-7737-a291-799685ed9a8d" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_AssetAcquisitionConsiderationTransferredEquityInterestsIssuedAndIssuable_019f6cab-31bd-7737-a291-799685ed9a8d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019f6cab-31bd-7e63-8d9a-36adabefaf59" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionConsiderationTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019f6cab-31bd-7e63-8d9a-36adabefaf59" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_019f6cab-31bd-7061-9a9b-b2f42877dd2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CapitalizedContractCostAmortizationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_CapitalizedContractCostAmortizationPeriod_019f6cab-31bd-7061-9a9b-b2f42877dd2f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRoyalties_019f6cab-31bd-7df0-ac00-e8376702ac8c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRoyalties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_PaymentsForRoyalties_019f6cab-31bd-7df0-ac00-e8376702ac8c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RoyaltyAgreementMinimumAccessPeriodToCompanyPlatform_019f6cab-31bd-7179-b1f5-3bdbeeae42ff" xlink:href="nvve-20260630.xsd#nvve_RoyaltyAgreementMinimumAccessPeriodToCompanyPlatform"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_RoyaltyAgreementMinimumAccessPeriodToCompanyPlatform_019f6cab-31bd-7179-b1f5-3bdbeeae42ff" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_019f6cab-31bd-7a31-98f1-70a1b1ce8118" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_PurchaseObligation_019f6cab-31bd-7a31-98f1-70a1b1ce8118" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualCarryingValueCurrent_019f6cab-31bd-7fd7-8869-3697c6fd724f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyAccrualCarryingValueCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_LossContingencyAccrualCarryingValueCurrent_019f6cab-31bd-7fd7-8869-3697c6fd724f" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LossContingencyAccrualPaymentPeriod_019f6cab-31bd-750c-b3c4-0fb33e2ce9ba" xlink:href="nvve-20260630.xsd#nvve_LossContingencyAccrualPaymentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_LossContingencyAccrualPaymentPeriod_019f6cab-31bd-750c-b3c4-0fb33e2ce9ba" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualCarryingValueNoncurrent_019f6cab-31bd-78ac-b9a0-1bd710b42316" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyAccrualCarryingValueNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_LossContingencyAccrualCarryingValueNoncurrent_019f6cab-31bd-78ac-b9a0-1bd710b42316" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LossContingencyAccrualPaymentsUponShipmentPercentage_019f6cab-31bd-7f8a-b4b9-e23aa58fce02" xlink:href="nvve-20260630.xsd#nvve_LossContingencyAccrualPaymentsUponShipmentPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_LossContingencyAccrualPaymentsUponShipmentPercentage_019f6cab-31bd-7f8a-b4b9-e23aa58fce02" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LossContingencyMinimumPaymentUponShipmentPeriod_019f6cab-31bd-7de6-bc1a-c6b0d73b060d" xlink:href="nvve-20260630.xsd#nvve_LossContingencyMinimumPaymentUponShipmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_LossContingencyMinimumPaymentUponShipmentPeriod_019f6cab-31bd-7de6-bc1a-c6b0d73b060d" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LossContingencyRemainingPaymentUponShipmentPeriod_019f6cab-31bd-7416-b927-cb3211a356f2" xlink:href="nvve-20260630.xsd#nvve_LossContingencyRemainingPaymentUponShipmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_LossContingencyRemainingPaymentUponShipmentPeriod_019f6cab-31bd-7416-b927-cb3211a356f2" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyReceivable_019f6cab-31bd-7463-9897-7f1940644758" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_us-gaap_LossContingencyReceivable_019f6cab-31bd-7463-9897-7f1940644758" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PayablesToCustomersCurrent_019fdb98-cb77-775c-8759-db76cfeec606" xlink:href="nvve-20260630.xsd#nvve_PayablesToCustomersCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_PayablesToCustomersCurrent_019fdb98-cb77-775c-8759-db76cfeec606" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_BatteryEnergyStorageCapacity_019ffbab-1f1a-7e66-a578-a28030748de1" xlink:href="nvve-20260630.xsd#nvve_BatteryEnergyStorageCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_BatteryEnergyStorageCapacity_019ffbab-1f1a-7e66-a578-a28030748de1" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SaleAndPurchaseAgreementMonthlyDevelopmentFee_019ffbab-c8c2-7620-be3b-2a78ffedf072" xlink:href="nvve-20260630.xsd#nvve_SaleAndPurchaseAgreementMonthlyDevelopmentFee"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_SaleAndPurchaseAgreementMonthlyDevelopmentFee_019ffbab-c8c2-7620-be3b-2a78ffedf072" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SaleAndPurchaseAgreementInitialPurchasePrice_019ffbab-c8c2-74da-96c3-06efaa25faf7" xlink:href="nvve-20260630.xsd#nvve_SaleAndPurchaseAgreementInitialPurchasePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_SaleAndPurchaseAgreementInitialPurchasePrice_019ffbab-c8c2-74da-96c3-06efaa25faf7" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SaleAndPurchaseAgreementCommercialOperationDatePaymentAmount_019ffbab-c8c2-742d-b069-c3b2b199c568" xlink:href="nvve-20260630.xsd#nvve_SaleAndPurchaseAgreementCommercialOperationDatePaymentAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_SaleAndPurchaseAgreementCommercialOperationDatePaymentAmount_019ffbab-c8c2-742d-b069-c3b2b199c568" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SaleAndPurchaseAgreementSellerLoanAmount_019ffbab-c8c2-7d17-82ca-de3d39e3f53e" xlink:href="nvve-20260630.xsd#nvve_SaleAndPurchaseAgreementSellerLoanAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7601-9279-658261b3bd72" xlink:to="loc_nvve_SaleAndPurchaseAgreementSellerLoanAmount_019ffbab-c8c2-7d17-82ca-de3d39e3f53e" xlink:type="arc" order="24"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/CommitmentsandContingenciesScheduleofmilestoneeventDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#CommitmentsandContingenciesScheduleofmilestoneeventDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/CommitmentsandContingenciesScheduleofmilestoneeventDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7158-8b8f-1657bc0f9735" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable_019f6cab-31bd-7ac4-9c0d-8e837e30ed72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7158-8b8f-1657bc0f9735" xlink:to="loc_us-gaap_OtherCommitmentsTable_019f6cab-31bd-7ac4-9c0d-8e837e30ed72" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-7e0e-a015-243f62bd0c5b" xlink:href="nvve-20260630.xsd#nvve_TypesOfAgreementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_019f6cab-31bd-7ac4-9c0d-8e837e30ed72" xlink:to="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-7e0e-a015-243f62bd0c5b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7e0e-a015-243f62bd0c5b_default" xlink:href="nvve-20260630.xsd#nvve_TypesOfAgreementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-7e0e-a015-243f62bd0c5b" xlink:to="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7e0e-a015-243f62bd0c5b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:href="nvve-20260630.xsd#nvve_TypesOfAgreementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_nvve_TypesOfAgreementAxis_019f6cab-31bd-7e0e-a015-243f62bd0c5b" xlink:to="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A10000AggregatedVehiclesMember_019f6cab-31bd-7770-8e02-8f72e749c3f2" xlink:href="nvve-20260630.xsd#nvve_A10000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A10000AggregatedVehiclesMember_019f6cab-31bd-7770-8e02-8f72e749c3f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A20000AggregatedVehiclesMember_019f6cab-31bd-7c83-a538-a7f65316d821" xlink:href="nvve-20260630.xsd#nvve_A20000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A20000AggregatedVehiclesMember_019f6cab-31bd-7c83-a538-a7f65316d821" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A40000AggregatedVehiclesMember_019f6cab-31bd-7c43-8fad-e62822b07869" xlink:href="nvve-20260630.xsd#nvve_A40000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A40000AggregatedVehiclesMember_019f6cab-31bd-7c43-8fad-e62822b07869" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A60000AggregatedVehiclesMember_019f6cab-31bd-7421-bac7-281fc65536c6" xlink:href="nvve-20260630.xsd#nvve_A60000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A60000AggregatedVehiclesMember_019f6cab-31bd-7421-bac7-281fc65536c6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A80000AggregatedVehiclesMember_019f6cab-31bd-7da7-9a15-1b5de1b162ae" xlink:href="nvve-20260630.xsd#nvve_A80000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A80000AggregatedVehiclesMember_019f6cab-31bd-7da7-9a15-1b5de1b162ae" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A100000AggregatedVehiclesMember_019f6cab-31bd-7664-aa4a-647fd7d98278" xlink:href="nvve-20260630.xsd#nvve_A100000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A100000AggregatedVehiclesMember_019f6cab-31bd-7664-aa4a-647fd7d98278" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A200000AggregatedVehiclesMember_019f6cab-31bd-7f7f-a70f-82b80a59fb0b" xlink:href="nvve-20260630.xsd#nvve_A200000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A200000AggregatedVehiclesMember_019f6cab-31bd-7f7f-a70f-82b80a59fb0b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_A250000AggregatedVehiclesMember_019f6cab-31bd-77d6-a6af-70ff2e8303ef" xlink:href="nvve-20260630.xsd#nvve_A250000AggregatedVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_nvve_TypesOfAgreementDomain_019f6cab-31bd-7025-aac8-1d3813e42f2e" xlink:to="loc_nvve_A250000AggregatedVehiclesMember_019f6cab-31bd-77d6-a6af-70ff2e8303ef" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_MilestonePaymentAmount_019f6cab-31bd-73cd-96f8-787695b0b09d" xlink:href="nvve-20260630.xsd#nvve_MilestonePaymentAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_019f6cab-31bd-7158-8b8f-1657bc0f9735" xlink:to="loc_nvve_MilestonePaymentAmount_019f6cab-31bd-73cd-96f8-787695b0b09d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/NonControllingInterestNoncontrollinginterestspresentedasaseparatecomponentofstockholdersdeficitDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#NonControllingInterestNoncontrollinginterestspresentedasaseparatecomponentofstockholdersdeficitDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/NonControllingInterestNoncontrollinginterestspresentedasaseparatecomponentofstockholdersdeficitDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestLineItems_019f6cab-31bd-763d-8e39-fb0bcd8c8a9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestTable_019f6cab-31bd-7741-8245-13d16a07f3aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_MinorityInterestLineItems_019f6cab-31bd-763d-8e39-fb0bcd8c8a9f" xlink:to="loc_us-gaap_MinorityInterestTable_019f6cab-31bd-7741-8245-13d16a07f3aa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019f6cab-31bd-738b-8b0b-27696c24fd46" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_019f6cab-31bd-7741-8245-13d16a07f3aa" xlink:to="loc_srt_OwnershipAxis_019f6cab-31bd-738b-8b0b-27696c24fd46" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-31bd-738b-8b0b-27696c24fd46_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019f6cab-31bd-738b-8b0b-27696c24fd46" xlink:to="loc_srt_OwnershipDomain_019f6cab-31bd-738b-8b0b-27696c24fd46_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-31bd-7789-a172-2795bf85e9ca" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019f6cab-31bd-738b-8b0b-27696c24fd46" xlink:to="loc_srt_OwnershipDomain_019f6cab-31bd-7789-a172-2795bf85e9ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LevoMobilityLLCMember_019f6cab-31bd-76b6-91ec-49511a6fcfdd" xlink:href="nvve-20260630.xsd#nvve_LevoMobilityLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-31bd-7789-a172-2795bf85e9ca" xlink:to="loc_nvve_LevoMobilityLLCMember_019f6cab-31bd-76b6-91ec-49511a6fcfdd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MovementInMinorityInterestRollForward_019f6cab-31bd-7511-8312-3aaa7964f385" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MovementInMinorityInterestRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_019f6cab-31bd-763d-8e39-fb0bcd8c8a9f" xlink:to="loc_us-gaap_MovementInMinorityInterestRollForward_019f6cab-31bd-7511-8312-3aaa7964f385" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019f6cab-31bd-790c-8fd9-9a4dcf56a536" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInMinorityInterestRollForward_019f6cab-31bd-7511-8312-3aaa7964f385" xlink:to="loc_us-gaap_MinorityInterest_019f6cab-31bd-790c-8fd9-9a4dcf56a536" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019f6cab-31bd-75cb-843d-3f53bc257df3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInMinorityInterestRollForward_019f6cab-31bd-7511-8312-3aaa7964f385" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019f6cab-31bd-75cb-843d-3f53bc257df3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019f6cab-31bd-7df2-8caa-9c4fe0592d33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/NonControllingInterestCondensedconsolidatedstatementsofoperationsDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#NonControllingInterestCondensedconsolidatedstatementsofoperationsDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/NonControllingInterestCondensedconsolidatedstatementsofoperationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestLineItems_019f6cab-31bd-7889-99b2-4ac8290490cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestTable_019f6cab-31bd-724b-b427-a8a1d65a3ebd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_MinorityInterestLineItems_019f6cab-31bd-7889-99b2-4ac8290490cf" xlink:to="loc_us-gaap_MinorityInterestTable_019f6cab-31bd-724b-b427-a8a1d65a3ebd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019f6cab-31bd-7a23-be04-b5f03e8cc3bc" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_019f6cab-31bd-724b-b427-a8a1d65a3ebd" xlink:to="loc_srt_OwnershipAxis_019f6cab-31bd-7a23-be04-b5f03e8cc3bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-31bd-7a23-be04-b5f03e8cc3bc_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019f6cab-31bd-7a23-be04-b5f03e8cc3bc" xlink:to="loc_srt_OwnershipDomain_019f6cab-31bd-7a23-be04-b5f03e8cc3bc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019f6cab-31bd-738f-bc07-eb26bf6df8cd" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019f6cab-31bd-7a23-be04-b5f03e8cc3bc" xlink:to="loc_srt_OwnershipDomain_019f6cab-31bd-738f-bc07-eb26bf6df8cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_LevoMobilityLLCMember_019f6cab-31bd-79d4-b287-01a16d16fef0" xlink:href="nvve-20260630.xsd#nvve_LevoMobilityLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019f6cab-31bd-738f-bc07-eb26bf6df8cd" xlink:to="loc_nvve_LevoMobilityLLCMember_019f6cab-31bd-79d4-b287-01a16d16fef0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_NetIncomeLossAttributableToNonControllingInterestAfterCapitalContribution_019f6cab-31bd-7c4c-becb-a1c21e200b04" xlink:href="nvve-20260630.xsd#nvve_NetIncomeLossAttributableToNonControllingInterestAfterCapitalContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_019f6cab-31bd-7889-99b2-4ac8290490cf" xlink:to="loc_nvve_NetIncomeLossAttributableToNonControllingInterestAfterCapitalContribution_019f6cab-31bd-7c4c-becb-a1c21e200b04" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/ReportableSegmentandSignificantSegmentExpensesScheduleofSignificantSegmentExpensesDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#ReportableSegmentandSignificantSegmentExpensesScheduleofSignificantSegmentExpensesDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/ReportableSegmentandSignificantSegmentExpensesScheduleofSignificantSegmentExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019f6cab-31bd-70ae-8950-5b137d669a1f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019f6cab-31bd-70ae-8950-5b137d669a1f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019f6cab-31bd-7bd6-bd51-2441cab39869" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019f6cab-31bd-70ae-8950-5b137d669a1f" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019f6cab-31bd-7bd6-bd51-2441cab39869" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019f6cab-31bd-7bd6-bd51-2441cab39869_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019f6cab-31bd-7bd6-bd51-2441cab39869" xlink:to="loc_us-gaap_SegmentDomain_019f6cab-31bd-7bd6-bd51-2441cab39869_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019f6cab-31bd-76ee-8388-8d7dad1d402e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019f6cab-31bd-7bd6-bd51-2441cab39869" xlink:to="loc_us-gaap_SegmentDomain_019f6cab-31bd-76ee-8388-8d7dad1d402e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ReportableSegmentMember_019f6cab-31bd-740d-8fc8-42b0b13f7e7a" xlink:href="nvve-20260630.xsd#nvve_ReportableSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019f6cab-31bd-76ee-8388-8d7dad1d402e" xlink:to="loc_nvve_ReportableSegmentMember_019f6cab-31bd-740d-8fc8-42b0b13f7e7a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-31bd-7ff5-99f9-ce46967499c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f6cab-31bd-7ff5-99f9-ce46967499c1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019f6cab-31bd-7b43-9ac8-910405cca0da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_CostOfRevenue_019f6cab-31bd-7b43-9ac8-910405cca0da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseEmployeeCompensationAndBenefits_019f6cab-31bd-7c3a-a0b9-edbe4d30d374" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseEmployeeCompensationAndBenefits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseEmployeeCompensationAndBenefits_019f6cab-31bd-7c3a-a0b9-edbe4d30d374" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseConsultants_019f6cab-31bd-7dde-b824-11b0a4b35cc6" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseConsultants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseConsultants_019f6cab-31bd-7dde-b824-11b0a4b35cc6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseMarketing_019f6cab-31bd-7110-919f-301a4fb478fd" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseMarketing"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseMarketing_019f6cab-31bd-7110-919f-301a4fb478fd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseRent_019f6cab-31bd-7ae9-bbd9-fd86b9583faf" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseRent_019f6cab-31bd-7ae9-bbd9-fd86b9583faf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseProfessionalFees_019f6cab-31bd-7eec-85c7-6066bf7fc62e" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseProfessionalFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseProfessionalFees_019f6cab-31bd-7eec-85c7-6066bf7fc62e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseLegal_019f6cab-31bd-728b-a790-a2e877a46ffe" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseLegal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseLegal_019f6cab-31bd-728b-a790-a2e877a46ffe" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseInsurance_019f6cab-31bd-7a3a-bd7c-3bdbcc948453" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseInsurance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseInsurance_019f6cab-31bd-7a3a-bd7c-3bdbcc948453" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseITExpense_019f6cab-31bd-7ec4-8250-7072a4eaf629" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseITExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseITExpense_019f6cab-31bd-7ec4-8250-7072a4eaf629" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseTravel_019f6cab-31bd-7b75-8d31-16ecdc5a6025" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseTravel"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseTravel_019f6cab-31bd-7b75-8d31-16ecdc5a6025" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseOfficeMealAndEmployeeReimbursement_019f6cab-31bd-7119-a56f-cf990af8743f" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseOfficeMealAndEmployeeReimbursement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseOfficeMealAndEmployeeReimbursement_019f6cab-31bd-7119-a56f-cf990af8743f" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseDuesAndSubscriptions_019f6cab-31bd-7a9a-baea-c07c9617b6a7" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseDuesAndSubscriptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseDuesAndSubscriptions_019f6cab-31bd-7a9a-baea-c07c9617b6a7" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseRepairsAndMaintenance_019f6cab-31bd-7669-a560-934f5541b575" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseRepairsAndMaintenance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseRepairsAndMaintenance_019f6cab-31bd-7669-a560-934f5541b575" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseOfficeSupplies_019f6cab-31bd-7a1c-be2c-e3ccb7d3ac88" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseOfficeSupplies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseOfficeSupplies_019f6cab-31bd-7a1c-be2c-e3ccb7d3ac88" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseTelephone_019f6cab-31bd-7598-8491-15437cc035f5" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseTelephone"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseTelephone_019f6cab-31bd-7598-8491-15437cc035f5" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseUtilities_019f6cab-31bd-7688-92ff-0cc5f8716dc3" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseUtilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseUtilities_019f6cab-31bd-7688-92ff-0cc5f8716dc3" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseDepreciationAndAmortization_019f6cab-31bd-7190-9029-e6cfc41e61af" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseDepreciationAndAmortization_019f6cab-31bd-7190-9029-e6cfc41e61af" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseBankCharges_019f6cab-31bd-73e9-a87b-cd0c1e4da3f2" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseBankCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseBankCharges_019f6cab-31bd-73e9-a87b-cd0c1e4da3f2" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseAdjustmentOfWarrantsGrantedForServices_019fcadf-e4e2-75a5-bbb6-115b7406f99b" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseAdjustmentOfWarrantsGrantedForServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseAdjustmentOfWarrantsGrantedForServices_019fcadf-e4e2-75a5-bbb6-115b7406f99b" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseFees_019f6cab-31bd-7af5-a065-01accd8cbb06" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseFees_019f6cab-31bd-7af5-a065-01accd8cbb06" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseProvisionForCreditLosses_019fcae0-208c-76f3-9cc0-3aa5c76a08e3" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseProvisionForCreditLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseProvisionForCreditLosses_019fcae0-208c-76f3-9cc0-3aa5c76a08e3" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SellingGeneralAndAdministrativeExpenseOther_019f6cab-31bd-75de-b27c-f311a24e794f" xlink:href="nvve-20260630.xsd#nvve_SellingGeneralAndAdministrativeExpenseOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_nvve_SellingGeneralAndAdministrativeExpenseOther_019f6cab-31bd-75de-b27c-f311a24e794f" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019f6cab-31bd-7259-8758-a8ade6b7757b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpenseAbstract_019f6cab-31bd-78f7-ad2f-23e04e3881a4" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_019f6cab-31bd-7259-8758-a8ade6b7757b" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseEmployeeCompensationAndBenefits_019f6cab-31bd-7523-bb8d-5fc29547ecfc" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseEmployeeCompensationAndBenefits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseEmployeeCompensationAndBenefits_019f6cab-31bd-7523-bb8d-5fc29547ecfc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseConsultants_019f6cab-31bd-7881-923f-a6b2276107de" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseConsultants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseConsultants_019f6cab-31bd-7881-923f-a6b2276107de" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseRent_019f6cab-31bd-76b4-97d4-56bb492c6449" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseRent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseRent_019f6cab-31bd-76b4-97d4-56bb492c6449" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseLicenseFees_019f6cab-31bd-746a-aae1-f20fab937a02" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseLicenseFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseLicenseFees_019f6cab-31bd-746a-aae1-f20fab937a02" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseLegal_019f6cab-31bd-77f5-94dc-c6e310a03833" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseLegal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseLegal_019f6cab-31bd-77f5-94dc-c6e310a03833" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseITExpense_019f6cab-31bd-7d0f-b62a-b64cd422439d" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseITExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseITExpense_019f6cab-31bd-7d0f-b62a-b64cd422439d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseTravel_019f6cab-31bd-7461-9bbc-1207ed1ec016" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseTravel"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseTravel_019f6cab-31bd-7461-9bbc-1207ed1ec016" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseOfficeMealAndEmployeeReimbursement_019f6cab-31bd-7ecb-85b7-4afba8ef85b6" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseOfficeMealAndEmployeeReimbursement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseOfficeMealAndEmployeeReimbursement_019f6cab-31bd-7ecb-85b7-4afba8ef85b6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseDuesAndSubscriptions_019f6cab-31bd-7b88-baa1-2bacb4c120a2" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseDuesAndSubscriptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseDuesAndSubscriptions_019f6cab-31bd-7b88-baa1-2bacb4c120a2" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseRepairsAndMaintenance_019f6cab-31bd-7962-97d5-ae24b1442d1b" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseRepairsAndMaintenance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseRepairsAndMaintenance_019f6cab-31bd-7962-97d5-ae24b1442d1b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseDepreciationAndAmortization_019f6cab-31bd-7f98-82c0-7b9fd89845ec" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseDepreciationAndAmortization_019f6cab-31bd-7f98-82c0-7b9fd89845ec" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseBankCharges_019f6cab-31bd-7c05-ad56-f98e07a00441" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseBankCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseBankCharges_019f6cab-31bd-7c05-ad56-f98e07a00441" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ResearchAndDevelopmentExpenseOther_019fdb9d-c7e1-7df6-84e6-01ac73af1277" xlink:href="nvve-20260630.xsd#nvve_ResearchAndDevelopmentExpenseOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_nvve_ResearchAndDevelopmentExpenseOther_019fdb9d-c7e1-7df6-84e6-01ac73af1277" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019f6cab-31bd-76e8-931e-0c1d9a24cd08" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseAbstract_019f6cab-31bd-7305-8545-fa61efea7b95" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019f6cab-31bd-76e8-931e-0c1d9a24cd08" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019f6cab-31bd-7780-9984-34fdc88b9abe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019f6cab-31bd-7780-9984-34fdc88b9abe" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019f6cab-31bd-7d8a-98d2-20651e059d0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019f6cab-31bd-7d8a-98d2-20651e059d0c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f6cab-31bd-7ee0-b755-8d015ec85a97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7335-a585-e49b83bc174e" xlink:to="loc_us-gaap_ProfitLoss_019f6cab-31bd-7ee0-b755-8d015ec85a97" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/ReportableSegmentandSignificantSegmentExpensesScheduleofSegmentInformationbyGeographicLocationsDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#ReportableSegmentandSignificantSegmentExpensesScheduleofSegmentInformationbyGeographicLocationsDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/ReportableSegmentandSignificantSegmentExpensesScheduleofSegmentInformationbyGeographicLocationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7dcf-8f0c-35dbeb4c3942" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_019f6cab-31bd-7003-a6a0-1bb8b22b4ef3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7dcf-8f0c-35dbeb4c3942" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_019f6cab-31bd-7003-a6a0-1bb8b22b4ef3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019f6cab-31bd-7c05-a023-af137aa87a4d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_019f6cab-31bd-7003-a6a0-1bb8b22b4ef3" xlink:to="loc_srt_StatementGeographicalAxis_019f6cab-31bd-7c05-a023-af137aa87a4d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-7c05-a023-af137aa87a4d_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019f6cab-31bd-7c05-a023-af137aa87a4d" xlink:to="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-7c05-a023-af137aa87a4d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-77de-8a6b-d83c6c1084f3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019f6cab-31bd-7c05-a023-af137aa87a4d" xlink:to="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-77de-8a6b-d83c6c1084f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019f6cab-31bd-7294-a96a-f274230eaf24" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-77de-8a6b-d83c6c1084f3" xlink:to="loc_country_US_019f6cab-31bd-7294-a96a-f274230eaf24" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB_019f6cab-31bd-7d26-9a9d-7328e3c7ac7e" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_GB"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-77de-8a6b-d83c6c1084f3" xlink:to="loc_country_GB_019f6cab-31bd-7d26-9a9d-7328e3c7ac7e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_JP_019fadba-2aa9-792a-a00f-68f318cc48b9" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_JP"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-77de-8a6b-d83c6c1084f3" xlink:to="loc_country_JP_019fadba-2aa9-792a-a00f-68f318cc48b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_TW_019fadbc-82d8-7e93-a8d3-05b9b7ccf763" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_TW"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-77de-8a6b-d83c6c1084f3" xlink:to="loc_country_TW_019fadbc-82d8-7e93-a8d3-05b9b7ccf763" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_DK_019f6cab-31bd-7717-be26-beac5ea3f6af" xlink:href="https://xbrl.sec.gov/country/2026/country-2026.xsd#country_DK"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019f6cab-31bd-77de-8a6b-d83c6c1084f3" xlink:to="loc_country_DK_019f6cab-31bd-7717-be26-beac5ea3f6af" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncurrentAssets_019f6cab-31bd-7363-890a-cad8fbdae953" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019f6cab-31bd-7dcf-8f0c-35dbeb4c3942" xlink:to="loc_us-gaap_NoncurrentAssets_019f6cab-31bd-7363-890a-cad8fbdae953" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/AcquisitionNarrativeDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#AcquisitionNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/AcquisitionNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-743e-bb36-95f96868f9f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTable_019fff95-fd7c-74b8-bd39-c603959193ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-743e-bb36-95f96868f9f3" xlink:to="loc_us-gaap_AssetAcquisitionTable_019fff95-fd7c-74b8-bd39-c603959193ee" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-70b8-80fe-4545f1947b55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019fff95-fd7c-74b8-bd39-c603959193ee" xlink:to="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-70b8-80fe-4545f1947b55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-70b8-80fe-4545f1947b55_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-70b8-80fe-4545f1947b55" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-70b8-80fe-4545f1947b55_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-75a6-b249-d7104cac65ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-70b8-80fe-4545f1947b55" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-75a6-b249-d7104cac65ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FermataEnergyLLCMember_019fff95-fd7c-77ed-bb93-c71a31a9d88f" xlink:href="nvve-20260630.xsd#nvve_FermataEnergyLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-75a6-b249-d7104cac65ef" xlink:to="loc_nvve_FermataEnergyLLCMember_019fff95-fd7c-77ed-bb93-c71a31a9d88f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019fff95-fd7c-7891-bf4a-fdf9a4c4572c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionConsiderationTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-743e-bb36-95f96868f9f3" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019fff95-fd7c-7891-bf4a-fdf9a4c4572c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PaymentsForAssetAcquisition_019fff95-fd7c-70c0-926b-5b7f4d8fc0bc" xlink:href="nvve-20260630.xsd#nvve_PaymentsForAssetAcquisition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-743e-bb36-95f96868f9f3" xlink:to="loc_nvve_PaymentsForAssetAcquisition_019fff95-fd7c-70c0-926b-5b7f4d8fc0bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionTemporaryEquitySharesIssued_019fff95-fd7c-70db-86a8-f53c49e68c31" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionTemporaryEquitySharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-743e-bb36-95f96868f9f3" xlink:to="loc_nvve_AssetAcquisitionTemporaryEquitySharesIssued_019fff95-fd7c-70db-86a8-f53c49e68c31" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/AssetAcquisitionScheduleofassetacquisitionDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#AssetAcquisitionScheduleofassetacquisitionDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/AssetAcquisitionScheduleofassetacquisitionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionTable_019fff95-fd7c-7d38-ab28-91b96ca6d1ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_us-gaap_AssetAcquisitionTable_019fff95-fd7c-7d38-ab28-91b96ca6d1ba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-7a3a-bbc3-643bb3e8c489" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_019fff95-fd7c-7d38-ab28-91b96ca6d1ba" xlink:to="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-7a3a-bbc3-643bb3e8c489" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-7a3a-bbc3-643bb3e8c489_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-7a3a-bbc3-643bb3e8c489" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-7a3a-bbc3-643bb3e8c489_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-7e14-92f5-d2220e615b05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_019fff95-fd7c-7a3a-bbc3-643bb3e8c489" xlink:to="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-7e14-92f5-d2220e615b05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_FermataEnergyLLCMember_019fff95-fd7c-7d77-a743-a774c787d817" xlink:href="nvve-20260630.xsd#nvve_FermataEnergyLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_019fff95-fd7c-7e14-92f5-d2220e615b05" xlink:to="loc_nvve_FermataEnergyLLCMember_019fff95-fd7c-7d77-a743-a774c787d817" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PaymentsForAssetAcquisitions_019fff95-fd7c-7274-ad58-2b3a9a413e76" xlink:href="nvve-20260630.xsd#nvve_PaymentsForAssetAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_PaymentsForAssetAcquisitions_019fff95-fd7c-7274-ad58-2b3a9a413e76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionConsiderationTransferredTemporaryEquityFairValue_019fff95-fd7c-7af7-baf1-8d74a6a1fb8e" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionConsiderationTransferredTemporaryEquityFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionConsiderationTransferredTemporaryEquityFairValue_019fff95-fd7c-7af7-baf1-8d74a6a1fb8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019fff95-fd7c-75aa-a5aa-4508147d9751" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetAcquisitionConsiderationTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_us-gaap_AssetAcquisitionConsiderationTransferred_019fff95-fd7c-75aa-a5aa-4508147d9751" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionInventory_019fff95-fd7c-7897-9487-dc074e32110a" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionInventory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionInventory_019fff95-fd7c-7897-9487-dc074e32110a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAdditions_019fff95-fd7c-7474-91d8-111f490ef21e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAdditions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAdditions_019fff95-fd7c-7474-91d8-111f490ef21e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionOtherAssets_019fff95-fd7c-7dd1-bfbd-ff87e3606c5d" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionOtherAssets_019fff95-fd7c-7dd1-bfbd-ff87e3606c5d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionIntangibleAssets_019fff95-fd7c-7b86-91a2-5137c689fcf3" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionIntangibleAssets_019fff95-fd7c-7b86-91a2-5137c689fcf3" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionAccountsPayable_019fff95-fd7c-7f96-a3e8-2b6e0b4f6666" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionAccountsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionAccountsPayable_019fff95-fd7c-7f96-a3e8-2b6e0b4f6666" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedIncludingGoodwill_019fff95-fd7c-7b5d-8d69-4528bed3b6f6" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedIncludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedIncludingGoodwill_019fff95-fd7c-7b5d-8d69-4528bed3b6f6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionGoodwill_019fff95-fd7c-78e3-8719-eb427a9f8de1" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionGoodwill_019fff95-fd7c-78e3-8719-eb427a9f8de1" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet_019fff95-fd7c-7cdf-90c4-d32a586a1556" xlink:href="nvve-20260630.xsd#nvve_AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionLineItems_019fff95-fd7c-769c-8a36-f63cb679e586" xlink:to="loc_nvve_AssetAcquisitionAssetsAcquiredAndLiabilitiesAssumedNet_019fff95-fd7c-7cdf-90c4-d32a586a1556" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/SubsequentEventsDetails" xlink:type="simple" xlink:href="nvve-20260630.xsd#SubsequentEventsDetails"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/SubsequentEventsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7710-afd6-251deb51bd5f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7710-afd6-251deb51bd5f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7eb5-a6a4-c46bebb0f789" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7eb5-a6a4-c46bebb0f789" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bd-7ba3-ba1e-126c6d95735b" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7eb5-a6a4-c46bebb0f789" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bd-7ba3-ba1e-126c6d95735b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-7e3c-b6df-6846eff1872e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-7e3c-b6df-6846eff1872e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ExistingWarrantsMember_019f6cab-31bd-7b3c-a60e-32cf6fcd9275" xlink:href="nvve-20260630.xsd#nvve_ExistingWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:to="loc_nvve_ExistingWarrantsMember_019f6cab-31bd-7b3c-a60e-32cf6fcd9275" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PreFundedWarrantsMember_019fadf4-5ec4-72f2-8c7b-d0419dd2c339" xlink:href="nvve-20260630.xsd#nvve_PreFundedWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:to="loc_nvve_PreFundedWarrantsMember_019fadf4-5ec4-72f2-8c7b-d0419dd2c339" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-7c02-b72f-f493dd5d9719_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-7c02-b72f-f493dd5d9719_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-70eb-ae3d-9f9ffb998fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-70eb-ae3d-9f9ffb998fc5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019fadca-32b3-7f28-b084-896549a40da8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-70eb-ae3d-9f9ffb998fc5" xlink:to="loc_us-gaap_SubsequentEventMember_019fadca-32b3-7f28-b084-896549a40da8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-7ff1-bd67-37139f17eff8_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-7ff1-bd67-37139f17eff8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-70a4-906a-1227d31ad4b9" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-70a4-906a-1227d31ad4b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OmniaGroupHoldingsAGMember_019ff24e-f72a-789a-acfd-88d79804b556" xlink:href="nvve-20260630.xsd#nvve_OmniaGroupHoldingsAGMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-70a4-906a-1227d31ad4b9" xlink:to="loc_nvve_OmniaGroupHoldingsAGMember_019ff24e-f72a-789a-acfd-88d79804b556" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_019ffc3a-94b2-7820-bd0a-e7f45f348585" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_019ffc3a-94b2-7820-bd0a-e7f45f348585" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-7d71-9215-811b88ec0d33_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-7d71-9215-811b88ec0d33_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-734e-ace6-266137642dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-734e-ace6-266137642dcf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OmniaGlobalAgreementsMember_019ffc3a-edbc-73c2-9b80-08b491b47c0f" xlink:href="nvve-20260630.xsd#nvve_OmniaGlobalAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-734e-ace6-266137642dcf" xlink:to="loc_nvve_OmniaGlobalAgreementsMember_019ffc3a-edbc-73c2-9b80-08b491b47c0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-791b-b4fa-0e2b93261d30_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:to="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-791b-b4fa-0e2b93261d30_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-7c58-8842-b1b9af093121" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:to="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-7c58-8842-b1b9af093121" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019ffc3d-ab8e-7737-84f6-a2d0294c8721" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-7c58-8842-b1b9af093121" xlink:to="loc_us-gaap_CommonStockMember_019ffc3d-ab8e-7737-84f6-a2d0294c8721" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019fff9c-9f99-7e50-92f2-4cb9985b240b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019fff9c-9f99-7e50-92f2-4cb9985b240b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019fadf7-db8b-7ad3-831f-67dd007b7f59" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019fadf7-db8b-7ad3-831f-67dd007b7f59" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fadf7-db8b-7541-bdc7-4154945e6eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fadf7-db8b-7541-bdc7-4154945e6eb5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fadf7-db8b-7146-a428-8f04236a4005" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fadf7-db8b-7146-a428-8f04236a4005" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019fadf7-db8b-7cdb-925b-912843ff5992" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019fadf7-db8b-7cdb-925b-912843ff5992" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019fadf7-db8b-7c42-8d6d-3f6b8935bbf2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019fadf7-db8b-7c42-8d6d-3f6b8935bbf2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_BatteryEnergyStorageCapacity_019ffc43-e78a-76d2-89f8-38aa5c52ab34" xlink:href="nvve-20260630.xsd#nvve_BatteryEnergyStorageCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_BatteryEnergyStorageCapacity_019ffc43-e78a-76d2-89f8-38aa5c52ab34" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_019ffc3a-81c1-78d3-8d79-d724d187eb82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_019ffc3a-81c1-78d3-8d79-d724d187eb82" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019ffc3b-c561-779b-86a3-c05d4f2d025e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019ffc3b-c561-779b-86a3-c05d4f2d025e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityShares_019ffc3d-0ef4-7047-8c86-fd30a165463c" xlink:href="nvve-20260630.xsd#nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityShares_019ffc3d-0ef4-7047-8c86-fd30a165463c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityPercentageOfOutstandingShares_019ffc3e-4abc-7db1-a926-065f3b30eea1" xlink:href="nvve-20260630.xsd#nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityPercentageOfOutstandingShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityPercentageOfOutstandingShares_019ffc3e-4abc-7db1-a926-065f3b30eea1" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityValue_019ffc3f-02ba-72e1-83c4-d59aa9012beb" xlink:href="nvve-20260630.xsd#nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityValue_019ffc3f-02ba-72e1-83c4-d59aa9012beb" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_019ff0a2-9995-7602-a310-d4546ead7c80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ContractWithCustomerLiability_019ff0a2-9995-7602-a310-d4546ead7c80" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.nvve.com/role/SubsequentEventsDetails_1" xlink:type="simple" xlink:href="nvve-20260630.xsd#SubsequentEventsDetails_1"/>
  <link:definitionLink xlink:role="http://www.nvve.com/role/SubsequentEventsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7710-afd6-251deb51bd5f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7710-afd6-251deb51bd5f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7eb5-a6a4-c46bebb0f789" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f6cab-31bd-7710-afd6-251deb51bd5f" xlink:to="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7eb5-a6a4-c46bebb0f789" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bd-7ba3-ba1e-126c6d95735b" xlink:href="nvve-20260630.xsd#nvve_SeriesAConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f6cab-31bd-7eb5-a6a4-c46bebb0f789" xlink:to="loc_nvve_SeriesAConvertiblePreferredStockMember_019f6cab-31bd-7ba3-ba1e-126c6d95735b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-7e3c-b6df-6846eff1872e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-7e3c-b6df-6846eff1872e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019f6cab-31bd-7e3c-b6df-6846eff1872e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_ExistingWarrantsMember_019f6cab-31bd-7b3c-a60e-32cf6fcd9275" xlink:href="nvve-20260630.xsd#nvve_ExistingWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:to="loc_nvve_ExistingWarrantsMember_019f6cab-31bd-7b3c-a60e-32cf6fcd9275" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_PreFundedWarrantsMember_019fadf4-5ec4-72f2-8c7b-d0419dd2c339" xlink:href="nvve-20260630.xsd#nvve_PreFundedWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019f6cab-31bd-79df-8d53-b2d17204bc5a" xlink:to="loc_nvve_PreFundedWarrantsMember_019fadf4-5ec4-72f2-8c7b-d0419dd2c339" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-7c02-b72f-f493dd5d9719_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-7c02-b72f-f493dd5d9719_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-70eb-ae3d-9f9ffb998fc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fadc9-ead6-7c02-b72f-f493dd5d9719" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-70eb-ae3d-9f9ffb998fc5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019fadca-32b3-7f28-b084-896549a40da8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019fadc9-ead6-70eb-ae3d-9f9ffb998fc5" xlink:to="loc_us-gaap_SubsequentEventMember_019fadca-32b3-7f28-b084-896549a40da8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-7ff1-bd67-37139f17eff8_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-7ff1-bd67-37139f17eff8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-70a4-906a-1227d31ad4b9" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_019ff24e-42b4-7ff1-bd67-37139f17eff8" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-70a4-906a-1227d31ad4b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OmniaGroupHoldingsAGMember_019ff24e-f72a-789a-acfd-88d79804b556" xlink:href="nvve-20260630.xsd#nvve_OmniaGroupHoldingsAGMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_019ff24e-42b4-70a4-906a-1227d31ad4b9" xlink:to="loc_nvve_OmniaGroupHoldingsAGMember_019ff24e-f72a-789a-acfd-88d79804b556" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-7d71-9215-811b88ec0d33_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-7d71-9215-811b88ec0d33_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-734e-ace6-266137642dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TypeOfArrangementAxis_019ffc3a-beae-7d71-9215-811b88ec0d33" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-734e-ace6-266137642dcf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_OmniaGlobalAgreementsMember_019ffc3a-edbc-73c2-9b80-08b491b47c0f" xlink:href="nvve-20260630.xsd#nvve_OmniaGlobalAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_019ffc3a-beae-734e-ace6-266137642dcf" xlink:to="loc_nvve_OmniaGlobalAgreementsMember_019ffc3a-edbc-73c2-9b80-08b491b47c0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019f6cab-31bd-7d41-b63c-fbca61e7be88" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-791b-b4fa-0e2b93261d30_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:to="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-791b-b4fa-0e2b93261d30_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-7c58-8842-b1b9af093121" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019ffc3d-84c1-791b-b4fa-0e2b93261d30" xlink:to="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-7c58-8842-b1b9af093121" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019ffc3d-ab8e-7737-84f6-a2d0294c8721" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019ffc3d-84c1-7c58-8842-b1b9af093121" xlink:to="loc_us-gaap_CommonStockMember_019ffc3d-ab8e-7737-84f6-a2d0294c8721" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019fff9c-9f99-7e50-92f2-4cb9985b240b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_019fff9c-9f99-7e50-92f2-4cb9985b240b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019fadf7-db8b-7ad3-831f-67dd007b7f59" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019fadf7-db8b-7ad3-831f-67dd007b7f59" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fadf7-db8b-7541-bdc7-4154945e6eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019fadf7-db8b-7541-bdc7-4154945e6eb5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fadf7-db8b-7146-a428-8f04236a4005" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019fadf7-db8b-7146-a428-8f04236a4005" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019fadf7-db8b-7cdb-925b-912843ff5992" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019fadf7-db8b-7cdb-925b-912843ff5992" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019fadf7-db8b-7c42-8d6d-3f6b8935bbf2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019fadf7-db8b-7c42-8d6d-3f6b8935bbf2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_BatteryEnergyStorageCapacity_019ffc43-e78a-76d2-89f8-38aa5c52ab34" xlink:href="nvve-20260630.xsd#nvve_BatteryEnergyStorageCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_BatteryEnergyStorageCapacity_019ffc43-e78a-76d2-89f8-38aa5c52ab34" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_019ffc3a-81c1-78d3-8d79-d724d187eb82" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_019ffc3a-81c1-78d3-8d79-d724d187eb82" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019ffc3b-c561-779b-86a3-c05d4f2d025e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_019ffc3b-c561-779b-86a3-c05d4f2d025e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityShares_019ffc3d-0ef4-7047-8c86-fd30a165463c" xlink:href="nvve-20260630.xsd#nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityShares_019ffc3d-0ef4-7047-8c86-fd30a165463c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityPercentageOfOutstandingShares_019ffc3e-4abc-7db1-a926-065f3b30eea1" xlink:href="nvve-20260630.xsd#nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityPercentageOfOutstandingShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityPercentageOfOutstandingShares_019ffc3e-4abc-7db1-a926-065f3b30eea1" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityValue_019ffc3f-02ba-72e1-83c4-d59aa9012beb" xlink:href="nvve-20260630.xsd#nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_nvve_RevenueRemainingPerformanceObligationVariableConsiderationEquityValue_019ffc3f-02ba-72e1-83c4-d59aa9012beb" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_019ff0a2-9995-7602-a310-d4546ead7c80" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019f6cab-3266-7e47-b079-8865b1d31ee6" xlink:to="loc_us-gaap_ContractWithCustomerLiability_019ff0a2-9995-7602-a310-d4546ead7c80" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-roles-2026.xsd#eedm1"/>
  <link:definitionLink xlink:role="http://fasb.org/srt/role/srt-eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:type="arc" order="691"/>
  </link:definitionLink>
</link:linkbase>
