europiumPronunciation: /jʊ(ə)rˈəʊpɪəm/Definition of europium noun [mass noun] the chemical element of atomic number 63, a soft silvery-white metal of the lanthanide series. Europium oxide is used with yttrium oxide as a red phosphor in colour television screens. (Symbol: Eu)Origin: early 20th century: modern Latin, based on Europeeuropium in other Oxford dictionaries Definition of europium in the US English dictionary
