epinephrine

English dictionary entry

Meanings

noun
  1. 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. It is also used as a medication.

Pronunciation

/ˌɛp.ɪˈnɛ.fɹɪn/ LL-Q1860 (eng)-Qwertygiy-epinephrine.wav LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-epinephrine.wav

Word forms

epinephrine epinephrines

Etymology

Etymology tree Proto-Indo-European *h₁ep-der. Proto-Indo-European *h₁epsder. Proto-Indo-European *h₁epi Proto-Hellenic *epí Ancient Greek ἐπί (epí) Ancient Greek ἐπῐ- (epĭ-) Proto-Indo-European *negʷʰrós Proto-Hellenic *nekʷʰrós Ancient Greek νεφρός (nephrós) Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ine English epinephrine From Ancient Greek ἐπι- (epi-, “upon”) + νεφρός (nephrós, “kidney”) + -ine.

Synonyms

adrenaline 4 5-β-trihydroxy-N-methylphenethylamine
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