gastrointestinal tract

n. (Anatomy) intestinal tract, digestive tract, alimentary tract, digestive system's tubular passage through which food passes wherein digestion occurs and from which wastes are eliminated (extending from the mouth to the anus and includes the pharynx, esophagus, stomach, small intestine and large intestine)

The gastrointestinal tract (GI tract), also called the digestive tract, or the alimentary canal, is the system of organs within multicellular animals that takes in food, digests it to extract energy and nutrients, and expels the remaining waste. The major functions of the GI tract are ingestion, digestion, absorption, and excretion.
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[GAS-tro-in-TES-tih-nul]
The stomach and intestines.

The organ along which food travels from the mouth until the undigested remnants emerge as stools. Mixing and some digestion occur in the stomach where the environment is acidic; most digestion and absorption of nutrients occurs in the small intestine; the large intestine, principally the colon, contains very large numbers of micro-organisms capable of fermenting food components that have escaped digestion in the small intestine.GelA complex solid and liquid food system, interconnected to give a network of intermingled particles.

Noun
1. tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination
(synonym) alimentary canal, alimentary tract, digestive tube, digestive tract, GI tract
(hypernym) duct, epithelial duct, canal, channel
(hyponym) enteron
(part-holonym) digestive system, gastrointestinal system, systema alimentarium, systema digestorium
(part-meronym) stomach, tummy, tum, breadbasket