'Gastrointestinal' definitions:

Definition of 'gastrointestinal'

From: WordNet
adjective
Of or relating to the stomach and intestines; "a gastrointestinal disorder" [syn: gastrointestinal, GI]

Definition of 'Gastrointestinal'

From: GCIDE
  • Gastrointestinal \Gas`tro*in*tes"ti*nal\, a. [Gastro- + -intestinal.] (Anat. & Med.) Of or pertaining to the stomach and intestines; gastroenteric. [1913 Webster]