The Collaborative International Dictionary of English v.0.48:

Enteric \En*ter"ic\, a. [Gr. ?. See Enteritis.] (Anat.)
   Of or pertaining to the enteron, or alimentary canal;
   intestinal.
   [1913 Webster]

   Enteric fever (Med.), typhoid fever.
      [1913 Webster]

WordNet (r) 3.0 (2006):

enteric
    adj 1: of or relating to the enteron [syn: enteric, enteral]
    2: of or relating to or inside the intestines; "intestinal
       disease" [syn: intestinal, enteric, enteral]

Moby Thesaurus II by Grady Ward, 1.0:

18 Moby Thesaurus words for "enteric":
   abdominal, anal, appendical, cardiac, cecal, colic, colonic,
   coronary, duodenal, gastric, ileac, intestinal, jejunal,
   mesogastric, pyloric, rectal, splanchnic, visceral