The Collaborative International Dictionary
Gastrocolic
Gastrocolic \Gas`tro*col"ic\, a. [Gastro- + colic.] (Anat.) Pertaining to both the stomach and the colon; as, the gastrocolic, or great, omentum.
Wiktionary
gastrocolic
a. (context anatomy English) Of or pertaining to the gastrointestinal tract and colon.