Meaning of gamma-aminobutyric acid in English:

gamma-aminobutyric acid

Pronunciation /ˌɡaməəˌmiːnəʊbjuːˈtɪrɪk/ /-əˌmʌɪnəʊ-/ /-ˈamɪnəʊ-/

noun

mass nounBiochemistry
  • 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.’
    • ‘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.’

Origin

Early 20th century gamma indicating the relative position of amino on the third carbon away from the acid group.