Definitions for "Enkephalin"
Enkephalins are molecules produced naturally by the central nervous system to numb pain. Enkephalins lock into receptors on the surface of a nerve cell and open ion channels. Ions flow into the cell and the distribution of charge on either side of the cell membrane becomes such that the nerve cell cannot fire.
a peptide found in the central nervous system that acts to relieve pain
an endorphin having opiate qualities that occurs in the brain and spinal cord and elsewhere