Source : Webster's Revised Unabridged Dictionary (1913)

Intestinal \In*tes"ti*nal\, a. [Cf. F. intestinal.]
   Of or pertaining to the intestines of an animal; as, the
   intestinal tube; intestinal digestion; intestinal ferments.

   {Intestinal canal}. Same as {Intestine}, n.

   {Intestinal worm} (Zo["o]l.), any species of helminth living
      in the intestinal canal of any animal. The species are
      numerous.

Source : WordNet®

intestinal
     adj : of or relating to or inside the intestines; "intestinal
           disease" [syn: {enteric}, {enteral}]