gastrointestinal system

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 system, n the chain of organs of the GI tract, from the oral cavity to the anus. [more]Gastrointestinal system - Community and Resources

Noun
1. the system that makes food absorbable into the body
(synonym) digestive system, systema alimentarium, systema digestorium
(hypernym) system
(part-holonym) body, organic structure, physical structure
(part-meronym) liver