lithotome

from The Collaborative International Dictionary of English v.0.48
Lithotome \Lith"o*tome\, n. [Gr. ? cutting stones; li`qos stone
   + ? to cut: cf. F. lithotome.]
   1. A stone so formed by nature as to appear as if cut by art.
      [1913 Webster]

   2. (Surg.) An instrument used for cutting the bladder in
      operations for the stone.
      [1913 Webster] Lithotomic
    

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