From Longman Dictionary of Contemporary Englishblood vesselˈblood ˌvessel noun [countable] HBHone of the tubes through which blood flows in your body → artery, vein
Examples from the Corpus
blood vessel• He was well beaten and in a later race broke a blood vessel.• The most critical is a life-threatening weakness in the aorta -- the major blood vessel from the heart.• On the Loose After passing through the liver, you exit into a nearby blood vessel. 