noun combining form -o·yl \əwəl, ə(ˌ)wil, əˌwēl\

Definition of -oyl



  1. :  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

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Origin and Etymology of -oyl

International Scientific Vocabulary -o- (as in -oic) + -yl

Seen and Heard

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to criticize severely

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