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femtometer

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femtometer


  1  definition  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  femtometer 
  n  :  a  metric  unit  of  length  equal  to  one  quadrillionth  of  a 
  meter  [syn:  {femtometre},  {fermi}] 




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