from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See epinephrine.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An alternative name for epinephrine; the hormone and neurotransmitter.
from the GNU version of the Collaborative International Dictionary of English
- n. .
- a hormone secreted by the adrenal medulla that acts as a powerful stimulant in reponse to fear or stress; it stimulates autonomic nerve action. It can be obtained as a crystalline substance, C9H13NO3. It is used in medicine as a vasoconstrictor (hemostatic) and cardiac stimulant, also to reduce allergic reactions and to stimulate the heart in cases of cardiac arrest.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action
From adrenal + -ine. (Wiktionary)