arterial

arterial
/ɑ:ˈtɪərɪəl; ɑr`tɪrɪəl/ adj
of or like an artery 动脉的; 像动脉的
    the arterial system, ie of the body 动脉网
    arterial roads, ie important main roads （道路的）干线.

牛津英汉双解词典