Noun epinephrin has 1 sense
  1. epinephrine, epinephrin, adrenaline, Adrenalin - a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action
    --1 is a kind of hormone, endocrine, internal secretion; catecholamine; neurotransmitter; vasoconstrictor, vasoconstrictive
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