Definition of noradrenaline in English:

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Pronunciation: /ˌnɔːrəˈdrɛn(ə)lɪn/


[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.
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.


1930s: from nor- + adrenaline.

For editors and proofreaders

Line breaks: nor¦adren|aline

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