trolley car n 1: a wheeled vehicle that runs on rails and is propelled by electricity [syn: {streetcar}, {tram}, {tramcar}, {trolley}, {trolley car}]
Trolley car \Trol"ley car\ (Elec.) A motor car powered by electricity drawn from a trolley, and thus constrained to follow the trolley lines. [Webster 1913 Suppl. +PJC] {Trolley line}, (a) A trolley (f) . (b) The path along which a trolley car runs. [PJC]