Definition of "aminobutyric" []

• 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. (adjective)

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• "Over time, drinking alcohol alters the balance of some chemicals in your brain, such as gamma-aminobutyric acid (GABA), which inhibits impulsiveness, and glutamate, which excites the nervous system."
• "Both classes of drugs activate the neurotransmitter that induces sleep, the gamma-aminobutyric acid GABA receptor complex."
• "Dream Water contains melatonin, a hormone which has been shown to aid sleep in healthy people and help fight insomnia (it gets a B from Natural Standard), as well as the amino acid 5-hydroxytryptophan and the neurotransmitter gamma-aminobutyric acid."