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The univalent group, -COOH, the functional group characteristic of all organic acids.

car′box·yl′ic (-sĭl′ĭk) adj.


(kɑrˈbɒk sɪl)
the univalent group COOH, of organic acids.
[1865–70; carb- + ox (ygen) + -yl]
car`box•yl′ic, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.carboxyl - the univalent radical -COOH; present in and characteristic of organic acids
chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
Adj.1.carboxyl - relating to or containing the carboxyl group or carboxyl radical
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions