1. The largest or most important artery carrying blood from the heart to the body or to a specific organ or region
The aorta is the main artery that carries oxygenated blood from the heart to the rest of the body.
A aorta é a artéria principal que leva sangue oxigenado do coração para o resto do corpo.
2. In anatomy, any major blood vessel of primary significance in a circulatory system
The surgeon identified the main artery before proceeding with the operation.
O cirurgião identificou a artéria principal antes de prosseguir com a operação.