单词	carboxyl
释义	carboxyl noun car·​box·​yl kär-ˈbäk-səl  : a monovalent functional group or radical −COOH typical of organic acids called also carboxyl group carboxylic ˌkär-(ˌ)bäk-ˈsi-lik  adjective Word History Etymology International Scientific Vocabulary First Known Use 1869, in the meaning defined above Medical Definition carboxyl noun car·​box·​yl kär-ˈbäk-səl  : a monovalent group −COOH typical of organic acids called also carboxyl group
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