an upright structure that is used for support or navigation, in particular (用作支撑或导航的)塔式建筑物,尤指 ■(亦作 electricity pylon)a tall tower-like structure used for carrying electricity cables high above the ground (架高压输电线的)电缆塔 ■a pillar-like structure on the wing of an aircraft used for carrying an engine, weapon, fuel tank, or other load (机翼上悬挂发动机,武器,燃料箱或其他负载的)外挂架,吊架 ■a tower or post marking a path for light aircraft, cars, or other vehicles, especially in racing (尤指比赛)标塔,定向塔;标杆 ■a monumental gateway to an ancient Egyptian temple formed by two truncated pyramidal towers (古埃及庙宇的)塔式门楼,埃及式门楼
语源
mid 19th cent.: from Greek pulōn, from pulē 'gate'