Main Entry: pra·seo·dym·i·um

Pronunciation: \ˌprā-zē-ō-ˈdi-mē-əm, ˌprā-sē-\

Function: noun

Etymology: New Latin, alteration of praseodidymium, irregular from Greek prasios, adjective + New Latin didymium didymium

Date: 1885

: a yellowish-white metallic element of the rare-earth group used especially in alloys and in the form of its salts in coloring glass greenish yellow — see element table