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contrail

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contrail


  1  definition  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  contrail 
  n  :  an  artificial  cloud  created  by  an  aircraft;  caused  either  by 
  condensation  due  to  the  reduction  in  air  pressure  above 
  the  wing  surface  or  by  water  vapor  in  the  engine  exhaust 
  [syn:  {condensation  trail}] 




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