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enkephalin

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noun en·keph·a·lin \in-ˈke-fə-lən, -(ˌ)lin, en-\

Definition of enkephalin

  1. :  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



Origin and Etymology of enkephalin

enkephal- (alteration of encephal-) + -in


First Known Use: 1975


Medical Dictionary

enkephalin

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noun en·keph·a·lin \in-ˈkef-ə-lən, -(ˌ)lin\

Medical Definition of enkephalin

  1. :  either of two pentapeptide endorphins:a:  leucine-enkephalinb:  methionine-enkephalin




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