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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Gastrointestinal tract n. The part of the digestive system consisting of the stomach, small intestine, and large intestine. [more]Gastrointestinal tract - Community and Resources

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

[GAS-tro-in-TES-tih-nul]
The stomach and intestines.