Source : Webster's Revised Unabridged Dictionary (1913)

Urology \U*rol"o*gy\, n. [1st uro- + -logy.] (Med.)
   See {Uronology}.

Source : WordNet®

urology
     n : the branch of medicine that deals with the diagnosis and
         treatment of disorders of the urinary tract or urogenital
         system [syn: {urogenital medicine}]