/ ˌpreɪziəʊˈdɪmiəm; NAmE / noun
[ U ] ( symb Pr ) a chemical element. Praseodymium is a soft silver-white metal used in alloys and to colour glass.
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WORD ORIGIN
late 19th cent.: modern Latin , from German Praseodym , from Greek prasios leek-green (because of its green salts) + German Didym didymium.