/ Dictionary / Index E eu-: Meaning and Definition of Find definitions for: eu- Pronunciation: [key] a combining form meaning “good,” “well,” occurring chiefly in words of Greek origin (eupepsia); in scientific coinages, esp. taxonomic names, it often has the sense “true, genuine” (eukaryote) EU Pronunciation: [key] European Union. Eu Pronunciation: [key] — Symbol, Chem. europium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eu- (Thesaurus) Etzel eubacteria Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language