'norepinephrine' definitions:

Definition of 'norepinephrine'

From: WordNet
noun
A catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses [syn: noradrenaline, norepinephrine]

Definition of 'norepinephrine'

From: GCIDE
  • norepinephrine \norepinephrine\ n. A hormone (C8H11NO3) secreted by the adrenal medulla; it also serves as a neurotransmitter, released at synapses; called also noradrenaline. Chemically it is 2-amino-1-(3,4-dihydroxyphenyl)ethanol. It is a precursor of epinephrine in the body.
  • Syn: noradrenaline. [WordNet 1.5] norethandrolone