Epinephrine

Pronunciation

• IPA: /É›pɪˈnÉ›fɹɪn/

Origin

From Ancient Greek ἐπί ("upon") + νεφρός ("kidney") + -ine.

Full definition of epinephrine

Noun

1. (hormone, neurotransmitter, organic compound) A catecholamine hormone and neurotransmitter; as a hormone, secreted by the adrenal gland in response to stress (when it stimulates the autonomic nervous system); as a neurotransmitter, synthesized from norepinephrine.

Synonyms

• (hormone and neurotransmitter) adrenalin, adrenaline, 4,5-β-trihydroxy-N-methylphenethylamine

Hypernyms

• (hormone) catecholamine
• (neurotransmitter) monoamine, phenethylamine

Related terms

• norepinephrine