is ilium the same as iliac crest
exists and is an alternate of . The ilium is one of the three bones that form the coxal bone. ''Iliac'' is an adjective meaning ''relative to the ilium''. Thus the iliac bone is the same as the ilium. The ilium is one of the three bones that form the coxal bone. ''Iliac'' is an adjective meaning ''relative to the ilium''.