English

Structure diagram of epinephrine

Noun

epinephrine ‎(countable and uncountable, plural epinephrines)

1. (biochemistry, biochemistry, organic chemistry) 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

Translations