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  Word: Thorium

  ID	Word	Wordtype	Definition
  158336	Thorium	n.	A metallic element found in certain rare minerals, as thorite, pyrochlore, monazite, etc., and isolated as an infusible gray metallic powder which burns in the air and forms thoria; -- formerly called also thorinum. Symbol Th. Atomic weight 232.0.

  
  

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