see the periodic table of elements in the Reference Supplement
a chemical element, one of the rare-earth elements, used as the red phosphor in color
TVs: symbol, Eu; at. no., 63
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'europium'
ModL: so named (1901) by E. A. Demarçay (1852-1904), Fr chemist < Europe