‖n. [ L. ile, ileum, ilium, pl. ilia, groin, flank. ] 1. (Anat.) The last, and usually the longest, division of the small intestine; the part between the jejunum and large intestine. [ Written also ileon, and ilium. ] [ 1913 Webster ]

2. (Anat.) See Ilium. [ R. ] [ 1913 Webster ]

☞ Most modern writers restrict ileum to the division of the intestine and ilium to the pelvic bone. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_;, &unr_;, fr. &unr_; 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 ]