Origin

C20: from o(xygen) + -yl

-oylending of the names of acid radicals, formed on the names of the corresponding carboxylic acids ending in -ic or -oic; e.g. fumaroyl, hexanoyl.1971Nomencl. 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’.

-oyl /əʊʌɪl, əʊɪl/ suffix.

ORIGIN: from -o(ic + -yl.

Organic Chemistry. Forming names of acid radicals from names of the corresponding carboxylic acids ending in -ic or -oic, as benzoyl, fumaroyl.

-o·yl
\_əwəl, ə(ˌ)wil, əˌwēl\ noun combining form
(-s)
Etymology: International Scientific Vocabulary -o- (as in -oic) + -yl
: acid radical — used in the system of nomenclature adopted by the International Union of Pure and Applied Chemistry in names of radicals derived from acids whose names end in -oic
< decanoyl >
and also most other organic acids
< oleoyl >
< phthaloyl >
— compare -yl

-oyl

(UK) IPA: /əʊɪl/

Suffix

chemistry Forming the names of acyl radicals from the names of corresponding carboxylic acids.

Etymology

From -o- + -yl.

Derived terms

English words suffixed with -oyl

词汇	-oyl
词根词缀	Collins OED SOED Webster Wiktionary -oyl suffix (in chemistry) indicating an acyl group or radical ⇒ ethanoyl ⇒ methanoyl Origin C20: from o(xygen) + -yl -oylending of the names of acid radicals, formed on the names of the corresponding carboxylic acids ending in -ic or -oic; e.g. fumaroyl, hexanoyl.1971Nomencl. 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’. -oyl /əʊʌɪl, əʊɪl/ suffix. ORIGIN: from -o(ic + -yl. Organic Chemistry. Forming names of acid radicals from names of the corresponding carboxylic acids ending in -ic or -oic, as benzoyl, fumaroyl. -o·yl \_əwəl, ə(ˌ)wil, əˌwēl\ noun combining form (-s) Etymology: International Scientific Vocabulary -o- (as in -oic) + -yl : acid radical — used in the system of nomenclature adopted by the International Union of Pure and Applied Chemistry in names of radicals derived from acids whose names end in -oic < decanoyl > and also most other organic acids < oleoyl > < phthaloyl > — compare -yl -oyl (UK) IPA: /əʊɪl/ Suffix chemistry Forming the names of acyl radicals from the names of corresponding carboxylic acids. Etymology From -o- + -yl. Derived terms ► English words suffixed with -oyl
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