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enkephalin

Pronunciation: /ɛnˈkɛf(ə)lɪn/
(also encephalin)
Definition of enkephalin

noun

Biochemistry
  • either of two peptide compounds occurring naturally in the brain, related to the endorphins and having similar physiological effects.

Origin:

1970s: from Greek enkephalos 'brain' (from en- 'in' + kephalē 'head') + -in1

enkephalin in other Oxford dictionaries

Definition of enkephalin in the US English dictionary