A device that collects electric current from an underground conductor, an overhead wire, or a third rail and transmits it to the motor of an electric vehicle.
A small truck or car operating on a track and used in a mine, quarry, or factory for conveying materials.
A wheeled carriage, cage, or basket that is suspended from and travels on an overhead track.
Chiefly British A cart.
tr. & intr.v.trol·leyed also trol·lied(-lēd), trol·ley·ing also trol·ly·ing, trol·leys also trol·lies(-lēz)