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单词 alkylidene
释义

Definition of alkylidene in English:

alkylidene

noun alˈkʌɪlɪdiːnalˈkɪlɪdiːn
Chemistry

  • A compound derived from an alkane by the replacement of two hydrogen atoms on the same carbon atom with one double-bonded atom or group; the divalent functional group =CR′R″ characteristic of such a compound.

Origin

Early 20th century; earliest use found in Journal of Physical Chemistry. From alkyl + -idene.

Definition of alkylidene in US English:

alkylidene

noun
Chemistry

  • A compound derived from an alkane by the replacement of two hydrogen atoms on the same carbon atom with one double-bonded atom or group; the divalent functional group =CR′R″ characteristic of such a compound.

Origin

Early 20th century; earliest use found in Journal of Physical Chemistry. From alkyl + -idene.
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更新时间：2025/7/5 1:43:42