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  Word: Didymium

  ID	Word	Wordtype	Definition
  43005	Didymium	n.	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 Neodymium, and Praseodymium.

  
  

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