Alimentary Canal

n. (Anatomy) intestinal tract, digestive tract, gastrointestinal 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, and intestines)

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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noun
tube in the body going from the mouth to the anus and including the throat, stomach, intestine, etc., through which food passes and is digested

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 tract, digestive tube, digestive tract, gastrointestinal 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