The Collaborative International Dictionary of English v.0.48:
Pyuria \Py*u"ri*a\, n. [NL., fr. Gr. ? pus + ? urine.] (Med.) A morbid condition in which pus is discharged in the urine. [1913 Webster]WordNet (r) 3.0 (2006):
pyuria n 1: presence of white blood cells in the urine; symptom of urinary tract infection