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English definition of “alkene”

alkene

noun [C] uk   /ˈæl.kiːn/ specialized us  
any gas in a group that contains carbon and hydrogen atoms, with the carbon atoms joined together in a double bond: Ethene and propene are alkenes.Specific chemicals, chemical compounds and gasesSubstances and structures in the bodyTypes of chemical
(Definition of alkene from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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