1. a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action; [syn: epinephrine, epinephrin, adrenaline, Adrenalin]
WordNet (r) 3.0 (2006):
epinephrine
n 1: a catecholamine secreted by the adrenal medulla in response
to stress (trade name Adrenalin); stimulates autonomic
nerve action [syn: epinephrine, epinephrin,
adrenaline, Adrenalin]