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American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n acronym for
(Biochemistry) 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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
gamma-aminobutyric acid: a neurotransmitter that inhibits excitatory responses.
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|Noun||1.||GABA - an amino acid that is found in the central nervous system; acts as an inhibitory neurotransmitter|
amino acid, aminoalkanoic acid - organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"
neurotransmitter - a neurochemical that transmits nerve impulses across a synapse
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