(rail transport) On a steam locomotive, a powered wheel driven by the locomotive's pistons or turbine.

An axle which transfers power to a powered wheel from an engine, as in a steam locomotive.

present participle of war-drive

Alternative form of wardriving

(Britain) a driver's licence; an official identification document which states the recipient may drive a motorised vehicle.

(rail transport) a car in a multiple unit which is motored and from which the train can be driven.

(rail transport) a purpose-built railway vehicle that allows the driver to operate a locomotive at the opposite end of a train.

Alternative spelling of drink-driving

present participle of test drive

The power, initiator or enthusiast behind an accomplishment. The driving force.