noun
aorta
Anatomical term for the main artery carrying blood from the heart.
大動脈は心臓から全身に血液を送る太い血管です。
The aorta is a large blood vessel that carries blood from the heart to the whole body.
noun
main artery; vital route
Figurative use for a crucial transportation or communication route, like a major highway or rail line.
この高速道路は日本の経済の大動脈だ。
This expressway is a vital artery of Japan's economy.