norepinephrine

n.

1.

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.

Noun

1.

norepinephrine - a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses Synonyms: noradrenaline

catecholamine, monoamine neurotransmitter, noradrenaline, vasoconstrictive, vasoconstrictor