Source : Webster's Revised Unabridged Dictionary (1913)

Pyuria \Py*u"ri*a\, n. [NL., fr. Gr. ? pus + ? urine.] (Med.)
   A morbid condition in which pus is discharged in the urine.

Source : WordNet®

pyuria
     n : presence of white blood cells in the urine; symptom of
         urinary tract infection