praseodymium
Concise Oxford English Dictionary © 2008 Oxford University Press:
praseodymium /ˌpreɪzɪə(ʊ)ˈdɪmɪəm/
▶noun the chemical element of atomic number 59, a soft silvery-white metal of the lanthanide series. (Symbol: Pr)
– origin C19: mod. L., from Ger. Praseodym, from Gk prasios ‘leek-green’ (because of its green salts) + Ger. Didym ‘didymium’.
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