The Collaborative International Dictionary of English v.0.48:
Enteritis \En`te*ri"tis\, n. [NL., fr. Gr. 'e`nteron an intestine + -itis.] (Med.) An inflammation of the intestines. --Hoblyn. [1913 Webster]WordNet (r) 3.0 (2006):
enteritis n 1: inflammation of the intestine (especially the small intestine); usually characterized by diarrhea