Definition of gamma-aminobutyric acid in English:

gamma-aminobutyric acid

Line breaks: gamma-aminobu¦tyr¦ic acid
Pronunciation: /ˌgaməəˌmiːnəʊbjuːˈtɪrɪk
 
, -əˌmʌɪnəʊ-, -ˈamɪnəʊ-/

noun

[mass noun] Biochemistry
  • An amino acid which acts to inhibit the transmission of nerve impulses in the central nervous system.
    • Chemical formula: H2NCH2CH2CH2COOH
    More example sentences
    • 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.

Origin

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

More definitions of gamma-aminobutyric acid

Definition of gamma-aminobutyric acid in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little