What does a hyphen look like? â is a punctuation mark used to join words and to separate syllables of a single word.
Definition of gastrointestinal tract. medical. : the part of the digestive system that consists of the stomach and intestines.
The gastrointestinal (GI) systemâalso known as the digestive systemâis a highly organized system of organs and components. These work together intricately to break food down into sugars, amino acids, fatty acids, and other simple molecules that are absorbed into the bloodstream.