gaba

noun Biochemistry.

1. a neurotransmitter of the central nervous system that inhibits excitatory responses.

n acronym for

1. gamma-aminobutyric acid: a biologically active substance found in plants and in brain and other animal tissues; it is a neurotransmitter that inhibits activation of neurones

abbr.

1. gamma-aminobutyric acid

1. Abbreviation of gamma-aminobutyric acid