| Noun | 1. | large intestine - beginning with the cecum and ending with the rectum; includes the cecum and the colon and the rectum; extracts moisture from food residues which are later excreted as fecesalimentary canal, alimentary tract, digestive tract, digestive tube, gastrointestinal tract, GI tract - tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination blind gut, caecum, cecum - the cavity in which the large intestine begins and into which the ileum opens; "the appendix is an offshoot of the cecum" transverse colon - the part of the large intestine that extends across the abdominal cavity and joins the ascending to the descending colon ascending colon - the part of the large intestine that ascends from the cecum to the transverse colon descending colon - the part of the large intestine that descends from the transverse colon to the sigmoid colon sigmoid colon, sigmoid flexure - the s-shaped curve between the descending colon and the rectum rectum - the terminal section of the alimentary canal; from the sigmoid flexure to the anus |