Source : Webster's Revised Unabridged Dictionary (1913)

Proctitis \Proc*ti"tis\, n. [NL., from Gr. ? anus + -itis.]
   (Med.)
   Inflammation of the rectum.

Source : WordNet®

proctitis
     n : inflammation of the rectum; marked by bloody stools and a
         frequent urge to defecate; frequently associated with
         Crohn's disease or ulcerative colitis