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单词 methide
释义

Definition of methide in English:

methide

noun ˈmɛθʌɪdˈmiːθʌɪd
Chemistry

  • 1The methyl anion CH₃ −, originally specifically in a compound with a metal atom. Later also: any compound that contains this anion or a substituted derivative of it.

  • 2More fully "quinone methide". A quinone derivative with a methylene group in place of one of the oxygen atoms.

  • 3A carbide whose anion is a single carbon atom (C4−), and which gives methane on hydrolysis.

Origin

Mid 19th century; earliest use found in Edward Frankland (1825–1899), chemist. From meth- + -ide.

Definition of methide in US English:

methide

noun
Chemistry

  • 1The methyl anion CH₃ −, originally specifically in a compound with a metal atom. Later also: any compound that contains this anion or a substituted derivative of it.

  • 2More fully "quinone methide". A quinone derivative with a methylene group in place of one of the oxygen atoms.

  • 3A carbide whose anion is a single carbon atom (C4−), and which gives methane on hydrolysis.

Origin

Mid 19th century; earliest use found in Edward Frankland (1825–1899), chemist. From meth- + -ide.
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更新时间：2025/8/24 22:59:51