01 A combining form, also used adjectively, indicating hydroxyl as an ingredient.
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1.
A combining form, also used adjectively, indicating hydroxyl as an ingredient.(Chem.)
Phrases & compounds
Hydroxy acid —
an organic acid, having (besides the hydroxyl group of the carboxyl radical) an alcoholic hydroxyl group, and thus having the qualities of an alcohol in addition to its acid properties; as, lactic and tartaric acids are hydroxy acids.