urinary calculus

From The Collaborative International Dictionary of English v.0.48:

Urinary \U"ri*na*ry\, a. [L. urina urine: cf. F. urinaire.]
   [1913 Webster]
   1. Of or pertaining to the urine; as, the urinary bladder;
      urinary excretions.
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   2. Resembling, or being of the nature of, urine.
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   Urinary calculus (Med.), a concretion composed of some one
      or more crystalline constituents of the urine, liable to
      be found in any portion of the urinary passages or in the
      pelvis of the kidney.

   Urinary pigments, (Physiol. Chem.), certain colored
      substances, urochrome, or urobilin, uroerythrin, etc.,
      present in the urine together with indican, a colorless
      substance which by oxidation is convertible into colored
      [1913 Webster]
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