arteria circumflexa ilium ar·te·ria·circumflexailium uncommon noun 1. an artery that supplies the lower abdominal walls and skin and the sartorius muscle Synonymscircumflex iliac arteryarteria circumflexa ilium Related words Broader terms circumflex artery WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.