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Noun
- 1. epinephrine, epinephrin, adrenaline, Adrenalin, hormone, endocrine, internal secretion, catecholamine, neurotransmitter, vasoconstrictor, vasoconstrictive, pressor
- usage: a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action
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Definition and meaning of epinephrine (Dictionary)