Definition from Wiktionary, the free dictionary
- IPA: /ɛpɪˈnɛfɹɪn/
- (biochemistry) Adrenaline: a catecholamine hormone secreted by the adrenal gland in response to stress (when it stimulates the autonomic nervous system).
- (biochemistry) A neurotransmitter which is synthesized from norepinephrine.
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