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