arterial
/ɑːˈtɪərɪəl/adjective
1- of or relating to an artery or arteries（与）动脉（有关）的。
1.1
- denoting an important route in a system of roads, railway lines, or rivers（公路、铁路或河流中）干线的, 主干的：
one of the main arterial routes from York.
从约克市发出的干线之一。
词源
late Middle English: from medieval Latin arterialis, from Latin arteria （see ARTERY）.