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ptosismore about ptosis

ptosis


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Ptosis  \Pto"sis\,  n.  [NL.,  fr  Gr  ?  a  falling.]  (Med.) 
  Drooping  of  the  upper  eyelid,  produced  by  paralysis  of  its 
  levator  muscle. 
 
  From  WordNet  r  1.6  [wn]: 
 
  ptosis 
  n  :  drooping  of  the  upper  eyelid  caused  by  muscle  paralysis  and 
  weakness 




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