(organic chemistry) Of or pertaining to any of several isomeric univalent radicals in which a hydrogen atom of a butyric radical is replaced by an amino group.

(organic chemistry) Any salt or ester of an aminobutyric acid

plural of aminobutyrate

Any of three isomeric chemical compounds: α-aminobutyric acid (AABA), β-aminobutyric acid (BABA), and γ-aminobutyric acid (GABA).

(biochemistry, physiology) An amino acid found in the nervous systems of vertebrates and acting as an inhibitory neurotransmitter. Abbreviated as GABA.