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praseodymium

noun
/ˌpreɪziəʊˈdɪmiəm/
/ˌpreɪziəʊˈdɪmiəm/
[uncountable]
(symbol Pr)
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  1. a chemical element. Praseodymium is a soft silver-white metal used in alloys and to colour glass.
    Word Originlate 19th cent.: modern Latin, from German Praseodym, from Greek prasios ‘leek-green’ (because of its green salts) + German Didym ‘didymium’.

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