'Small intestine' definitions:

Definition of 'small intestine'

From: WordNet
noun
The longest part of the alimentary canal; where digestion is completed

Definition of 'Small intestine'

From: GCIDE
  • Intestine \In*tes"tine\, n.; pl. Intestines. [L. intestinum: cf. F. intestin. See Intestine, a.] [1913 Webster]
  • 1. (Anat.) That part of the alimentary canal between the stomach and the anus. See Illust. of Digestive apparatus. [1913 Webster]
  • 2. pl. The bowels; entrails; viscera. [1913 Webster]
  • 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. [1913 Webster]