gaba gab pin • gabapentin · · · Info · Definitions · Synonyms · Characters · · gaba · · Text Latin · · Script 4 · · Length 2 · · Syllables Definitions · · · (noun) an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter. Synonyms: gamma aminobutyric acid, GABA. · · Noun Definition 1 Synonyms · · · gamma aminobutyric acid · · Synonym 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 g latin small letter g U+0067