aortic arch(redirected from arch of aorta)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.
Related to arch of aorta: descending aorta
aortic arch[ā′ȯrd·ik ′ärch]
The portion of the aorta extending from the heart to the third thoracic vertebra; single in warm-blooded vertebrates and paired in fishes, amphibians, and reptiles.