/ Dictionary / Index E europium: Meaning and Definition of Find definitions for: eu•ro•pi•um Pronunciation: (yoo-rō'pē-um, yu-), [key] — n. Chem. a rare-earth metallic element whose salts are light pink. Symbol: Eu; at. wt.: 151.96; at. no.: 63. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: europium (Thesaurus) European white hellebore Europocentric Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language