circumflex artery cir·cumf·le·xartery uncommon noun 1. any of several paired curving arteries Synonymscircumflex artery Related words Word family circumflex artery of the thigh Broader terms artery Narrower terms circumflex artery of the thighcircumflex humeral arterycircumflex iliac arterycircumflex scapular artery WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.