Ileus \Il"e*us\, n. [NL., fr. Gr. ?, ?, fr. ? to roll up.] (Med.) A morbid condition due to intestinal obstruction. It is characterized by complete constipation, with griping pains in the abdomen, which is greatly distended, and in the later stages by vomiting of fecal matter. Called also {ileac passion} or {iliac passion}. [1913 Webster]
Ileac \Il"e*ac\, a. [See {Ileum}.] 1. (Anat.) Pertaining to the ileum. [Written also {iliac}.] [1913 Webster] 2. See {Iliac}, 1. [R.] [1913 Webster] {Ileac passion}. (Med.) See {Ileus}. [1913 Webster]