acetonylidene

noun

ac·​e·​ton·​yl·​i·​dene

ˌa-sə-tō-ˈni-lə-ˌdēn,

ə-ˌse-tə-

plural -s

: the bivalent radical CH₃COCH< formed by removal of two hydrogen atoms from the same carbon atom of acetone

Word History

Etymology

acetonyl + -idene

First Known Use

1919, in the meaning defined above

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