Source : Webster's Revised Unabridged Dictionary (1913)

Trolley car \Trol"ley car\ (Elec.)
   A motor car to which the current is conveyed by means of a
   trolley.

Source : WordNet®

trolley car
     n : a wheeled vehicle that runs on rails and is propelled by
         electricity; "`tram' and `tramcar' are British terms"
         [syn: {streetcar}, {tram}, {tramcar}, {trolley}]