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cumulonimbus

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cumulonimbus


  1  definition  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  cumulonimbus 
  n  :  a  dark  cloud  of  great  vertical  extent  charged  with 
  electricity;  associated  with  thunderstorms  [syn:  {cumulonimbus 
  cloud},  {thundercloud}] 




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