柯林斯詞典aorta /e????t?/ (aortas) 1. N-COUNT The aorta is the main artery through which blood leaves your heart before it flows through the rest of your body. 主動脈 返回 aorta劍橋詞典the main artery (= thick tube carrying blood from the heart ) that takes blood to the other parts of the body 大動脈，主動脈 返回 aorta