noun

• An amino acid which acts to inhibit the transmission of nerve impulses in the central nervous system.

  Chemical formula: H₂NCH₂CH₂CH₂COOH

  ‘Phytosterols, a volatile oil, and amino acids, including gamma-aminobutyric acid and L-canavanine, have been isolated from the root.’

  More example sentences

  • ‘Instead, the etiology of the disorder is related to abnormalities of serotonin, norepinephrine, gamma-aminobutyric acid, dopamine, and cholecystokinin.’
  • ‘Hypoxia increases central nervous system levels of specific neuroinhibitors such as endogenous opioids, adenosine, and gamma-aminobutyric acid.’
  • ‘These effects are thought to occur by enhancing the actions of gamma-aminobutyric acid in the central nervous system.’
  • ‘Important neurotransmitters that are created from amino acids include serotonin and gamma-aminobutyric acid.’