(chiefly Brit.)an undercarriage with four or six wheels pivoted beneath the end of a railway vehicle (主 英)(铁路车辆的)转向架 ■(Indian)a railway carriage (印度)铁路客车车厢 ■(chiefly N. English)a low truck on four small wheels; a trolley (主 北英格兰)四轮低车身卡车;手推车
语源
early 19th cent. (originally in northern English dialect use): of unknown origin