The Collaborative International Dictionary
Ileocaecal
Ileocaecal \Il`e*o*c[ae]"cal\, a. [Ileum + c[ae]cal.] (Anat.) Pertaining to the ileum and c[ae]cum.
Wiktionary
ileocaecal
a. (context anatomy English) Of or pertaining to the connection between the final segment of the small intestine (ileum) and large intestine (colon).