Carboxyl

[kɑ:'bɒksil]

Definition

(noun.) the univalent radical -COOH; present in and characteristic of organic acids.

(adj.) relating to or containing the carboxyl group or carboxyl radical .

Checked by Amy--From WordNet

Definition

(n.) 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.

Typed by Jaime