a. (Anat.) Pertaining to the ileum and colon; as, the ileocolic, or ileocæcal, valve, a valve where the ileum opens into the large intestine. [ 1913 Webster ]
(n)an artery that originates from the superior mesenteric artery and supplies the terminal part of the ileum and the cecum and the vermiform appendix and the ascending colon, Syn.arteria ileocolica