The Collaborative International Dictionary of English v.0.48:
Prostatitis \Pros`ta*ti"tis\, n. [NL. See Prostate, and -itis.] (Med.) Inflammation of the prostate. [1913 Webster]WordNet (r) 3.0 (2006):
prostatitis n 1: inflammation of the prostate gland characterized by perineal pain and irregular urination and (if severe) chills and fever