Definition of norepinephrine in English:

norepinephrine

Syllabification: nor·ep·i·neph·rine
Pronunciation: /ˌnôrepəˈnefrin
 
/

noun

Biochemistry
A hormone that 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. Also called noradrenaline.
  • Chemical formula: (HO)2C6H3CHOHCH2NH2
More example sentences
  • When you're under stress your adrenal glands produce the hormones cortisol, norepinephrine, and adrenaline.
  • Within the adrenal medulla dopamine is converted to norepinephrine and epinephrine.
  • As a natural response to a diseased heart, the body releases the hormone norepinephrine, causing the heart to beat up to five times faster than normal.

Origin

1940s: from nor- + epinephrine.

More definitions of norepinephrine

Definition of norepinephrine in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day middlescent
Pronunciation: ˌmɪdəˈlɛs(ə)nt
adjective
middle-aged, but still maintaining youthful interests and activities