enkephalin
noun
en·keph·a·lin
in-ˈke-fə-lən
-(ˌ)lin,
en-
: either of two pentapeptides with opiate and analgesic activity that occur naturally especially in the brain and have a marked affinity for opiate receptors compare endorphin
Love words? Need even more definitions?
Merriam-Webster unabridged
Share