Definition of noradrenaline in English:

noradrenaline

Line breaks: nor¦adren|aline
Pronunciation: /ˌnɔːrəˈdrɛn(ə)lɪn
 
/

noun

[mass noun] Biochemistry
  • A hormone which is released by the adrenal medulla and by the sympathetic nerves and functions as a neurotransmitter. It is also used as a drug to raise blood pressure.
    • Chemical formula: (HO)2C6H3CHOHCH2NH2
    More example sentences
    • To date, we know of approximately 300 substances that act as neurotransmitters, including endorphins, neuropeptides, adrenaline, noradrenaline and acetylcholine.
    • The tumor increases production of adrenaline and noradrenaline, raising blood pressure.
    • This amino acid fights fatigue by pumping up your levels of the energizing neurotransmitters dopamine, noradrenaline, and adrenaline.

Origin

1930s: from nor- + adrenaline.

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a small amount; a little