Breadcrumb Home > Thesaurus > E Synonyms of enkephalin Find synonyms for: Noun 1. enkephalin, endorphin usage: an endorphin having opiate qualities that occurs in the brain and spinal cord and elsewhere WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of enkephalin (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language