starter motor

Definitions

Aviation

  • noun in a piston engine, a small electrically operated device to turn the engine until ignition starts

Cars & Driving

  • noun a powerful electric motor that engages with the flywheel to turn an internal combustion engine which begins the induction of fuel and the ignition cycle

Travel

  • noun an electric motor in a car which sets the main engine going
http://www.dictionarycentral.com/definition/starter-motor.html