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单词 nor-
释义

nor-

prefix Chemistry
Denoting an organic compound derived from another, in particular by the shortening of a chain or ring by the removal of one methylene group or by the replacement of one or more methyl side chains by hydrogen atoms: noradrenaline

Origin

From nor(mal), originally used to refer to a compound without methyl substituents.

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更新时间:2024/12/23 21:00:43