Wordnet 3.0
NOUN (1)
1. 
 inflammation of the rectum; 
 marked by bloody stools and a frequent urge to defecate; 
 frequently associated with Crohn's disease or ulcerative colitis; 
The Collaborative International Dictionary of English v.0.48:
Proctitis \Proc*ti"tis\, n. [NL., from Gr. ? anus + -itis.]
   (Med.)
   Inflammation of the rectum.
   [1913 Webster]
WordNet (r) 3.0 (2006):
proctitis
    n 1: inflammation of the rectum; marked by bloody stools and a
         frequent urge to defecate; frequently associated with
         Crohn's disease or ulcerative colitis