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bifocal

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bifocal


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Bifocal  \Bi*fo"cal\,  a.  [Pref.  bi-+  focal.] 
  Having  two  foci,  as  some  spectacle  lenses. 
 
  From  WordNet  r  1.6  [wn]: 
 
  bifocal 
  adj  :  (optics)  having  two  foci;  "bifocal  eyeglasses" 




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