carboxyl

English definition

adjective

1. relating to or containing the carboxyl group or carboxyl radical

   Source: WordNet 3.0

noun

1. the univalent radical -COOH; present in and characteristic of organic acids

   Source: WordNet 3.0

2. The complex radical, CO.OH, regarded as the essential and characteristic constituent which all oxygen acids of carbon (as formic, acetic, benzoic acids, etc.) have in common; -- called also oxatyl.

   Source: Webster 1913