gastrointestinal (GI) tract

Definition of gastrointestinal tract

gastrointestinal tract

(GAS-troh-in-TES-tih-nul trakt)
The organs that food and liquids travel through when they are swallowed, digested, absorbed, and leave the body as feces. These organs include the mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, rectum, and anus. The gastrointestinal tract is part of the digestive system. Also called alimentary tract and digestive tract.

Source: NCI Dictionary of Cancer Terms