-oylsuffix

Stress placement is idiosyncratic and/or variable in words ending with this suffix.

Origin: Formed within English, by derivation. Etymons: -o- connective, -yl suffix.

Etymology: < -o- connective + -yl suffix.

Chemistry.

Forming names of radicals, spec. acyl radicals, from names of the corresponding carboxylic acids ending in -ic or -oic, as fumaroyl, hexanoyl, nonanoyl, etc.

ΚΠ

1931 Jrnl. Chem. Soc. i. 1615 Radicals derived from acids by loss of the hydroxyl group will be named by changing the termination carbonic or carboxylic to carbonyl, or oic to oyl.

1971 Nomencl. Org. Chem. (I.U.P.A.C.) (ed. 2) C. 185 The name of a univalent or bivalent acyl radical formed by removal of hydroxyl from all the carboxyl groups is derived from the name of the corresponding acid by changing the ending ‘-oic’ to ‘-oyl’.

This entry has been updated (OED Third Edition, March 2005; most recently modified version published online June 2020).

单词	-oyl
释义	-oylsuffix Stress placement is idiosyncratic and/or variable in words ending with this suffix. Origin: Formed within English, by derivation. Etymons: -o- connective, -yl suffix. Etymology: < -o- connective + -yl suffix. Chemistry. Forming names of radicals, spec. acyl radicals, from names of the corresponding carboxylic acids ending in -ic or -oic, as fumaroyl, hexanoyl, nonanoyl, etc. ΚΠ 1931 Jrnl. Chem. Soc. i. 1615 Radicals derived from acids by loss of the hydroxyl group will be named by changing the termination carbonic or carboxylic to carbonyl, or oic to oyl. 1971 Nomencl. Org. Chem. (I.U.P.A.C.) (ed. 2) C. 185 The name of a univalent or bivalent acyl radical formed by removal of hydroxyl from all the carboxyl groups is derived from the name of the corresponding acid by changing the ending ‘-oic’ to ‘-oyl’. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online June 2020). < suffix1931
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