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单词 ketone
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ke•tone  (kē′tōn),USA pronunciation n. [Chem.]
  1. Chemistryany of a class of organic compounds containing a carbonyl group, CO, attached to two alkyl groups, as CH3COCH3 or CH3COC2H5.

adj. 
  1. Chemistrycontaining the ketone group.
  • German Keton, aphetic alteration of Aceton acetone
  • 1850–55;
ke•ton•ic  (ki ton′ik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
ketone /ˈkiːtəʊn/ n
  1. any of a class of compounds with the general formula R′COR, where R and R′ are alkyl or aryl groups
Etymology: 19th Century: from German Keton, from Aketon acetone

ketonic /kɪˈtɒnɪk/ adj
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更新时间：2025/7/31 20:15:51