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.
gastrointestinal tract n. The part of the digestive system consisting of the stomach, small intestine, and large intestine. Examination on autopsy revealed inflammation of the gastrointestinal tract. Acetic acid is irritant to the gastrointestinal tract, and may cause sudden paralysis of the heart.