Either of two compounds that occur naturally in the brain. They are peptides related to the endorphins, with similar physiological effects.
- Within a few years, researchers had isolated two classes of peptide molecules, the enkephalins and the endorphins.
- Belief and expectation, cardinal components of hope, can block pain by releasing the brain's endorphins and enkephalins, thereby mimicking the effect of morphine.
- Endorphin and enkephalins are released, creating a euphoric effect.
1970s: from Greek enkephalos 'brain' (from en- 'in' + kephalē 'head') + -in1.
For editors and proofreaders
Definition of enkephalin in:
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.