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pitchblendemore about pitchblende


  2  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Pitchblende  \Pitch"blende`\,  n.  [1st  pitch  +  blende.]  (Min.) 
  A  pitch-black  mineral  consisting  chiefly  of  the  oxide  of 
  uranium;  uraninite.  See  {Uraninite}. 
  From  WordNet  r  1.6  [wn]: 
  n  :  a  mineral  consisting  of  uranium  oxide  and  trace  amounts  of 
  radium  and  thorium  and  polonium  and  lead  and  helium; 
  uraninite  in  massive  form  is  called  pitchblende  which  is 
  the  chief  uranium  ore  [syn:  {uraninite}] 

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