n. 1. an oily poisonous liquid amine obtained from nitrobenzene and used to make dyes and plastics and medicines. Same as aniline. Syn. -- aniline oil, phenylamine [ WordNet 1.5 ]
(n) organic compounds containing an amino group and a carboxylic acid group, Syn. aminoalkanoic acid, Example:proteins are composed of various proportions of about 20 common amino acids