Gastrointestinal

a.

1.

(Anat. & Med.) Of or pertaining to the stomach and intestines; gastroenteric.

Adj.

1.

gastrointestinal - of or relating to the stomach and intestines; "a gastrointestinal disorder" Synonyms: gi

alimentary canal, alimentary tract, digestive tract, digestive tube, gastrointestinal tract, gi, GI tract