DIDYMIUM - Definiția din dicționar
Traducere: română
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Di*dym"i*um (?), n. [NL., fr. Gr. &unr_; twin.] (Chem.) A rare metallic substance usually associated with the metal cerium; -- hence its name. It was formerly supposed to be an element, but has since been found to consist of two simpler elementary substances, neodymium and praseodymium. See
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