carboxylic acidPronunciation: /ˌkɑːbɒkˈsɪlɪk/Definition of carboxylic acid noun Chemistry an organic acid containing a carboxyl group. The simplest examples are methanoic (or formic) acid and ethanoic (or acetic) acid. carboxylic acid in other Oxford dictionaries Definition of carboxylic acid in the US English dictionary
