norepinephrine


nor·epi·neph·rine

noun \ˌnr-ˌep-ə-ˈnef-rən, -rēn\

Definition of NOREPINEPHRINE

: a catecholamine C8H11NO3 that is the chemical means of transmission across synapses in postganglionic neurons of the sympathetic nervous system and in some parts of the central nervous system, is a vasopressor hormone of the adrenal medulla, and is a precursor of epinephrine in its major biosynthetic pathway—called also arterenol, noradrenaline; see levophed

Seen & Heard

What made you want to look up norepinephrine? Please tell us where you read or heard it (including the quote, if possible).