Source : Webster's Revised Unabridged Dictionary (1913)

Intestine \In*tes"tine\, n.; pl. {Intestines}. [L. intestinum:
   cf. F. intestin. See {Intestine}, a.]
   1. (Anat.) That part of the alimentary canal between the
      stomach and the anus. See Illust. of Digestive apparatus.

   2. pl. The bowels; entrails; viscera.

   {Large intestine} (Human Anat. & Med.), the lower portion of
      the bowel, terminating at the anus. It is adapted for the
      retention of fecal matter, being shorter, broader, and
      less convoluted than the small intestine; it consists of
      three parts, the c[ae]cum, colon, and rectum.

   {Small intestine} (Human Anat. & Med.), the upper portion of
      the bowel, in which the process of digestion is
      practically completed. It is narrow and contorted, and
      consists of three parts, the duodenum, jejunum, and ileum.

Intestine \In*tes"tine\, a. [L. intestinus, fr. intus on the
   inside, within, fr. in in: cf. F. intestine. See {In}.]
   1. Internal; inward; -- opposed to {external}.

            Epilepsies, fierce catarrhs, Intestine stone and
            ulcers.                               --Milton.

   2. Internal with regard to a state or country; domestic; not
      foreign; -- applied usually to that which is evil; as,
      intestine disorders, calamities, etc.

            Hoping here to end Intestine war in heaven, the arch
            foe subdued.                          --Milton.

            An intestine struggle . . . between authority and
            liberty.                              --Hume.

   3. Depending upon the internal constitution of a body or
      entity; subjective.

            Everything labors under and intestine necessity.
                                                  --Cudworth.

   4. Shut up; inclosed. [R.] --Cowper.

Source : WordNet®

intestine
     n : the part of the alimentary canal between the stomach and the
         anus [syn: {bowel}, {gut}]