gamma-aminobutyric acid var of GAMMA-AMINOBUTYRIC ACID
gam·ma-ami·no·bu·tyr·ic acid also gamma-ami·no·bu·tyr·ic acid .gam-ə-ə-.mē-(.)nō-byü-.tir-ik-, .gam-ə-.am-ə-(.)nō- n an amino acid C4H9NO2 that is a neurotransmitter that induces inhibition of postsynaptic neurons abbr. GABA
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an amino acid found in the central nervous system, predominantly in the brain, where it acts as an inhibitory neurotransmitter.
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gam·ma-ami·no·bu·tyr·ic ac·id (gamґə-ə-me″no-bu-tirґik) γ-aminobutyric acid; see under A.Medical dictionary. 2011.