1. (noun) a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action

• adrenalin
• epinephrin
• epinephrine

1. (noun) a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action

• catecholamine
• endocrine
• hormone
• internal secretion
• neurotransmitter
• pressor
• vasoconstrictive
• vasoconstrictor