is a specific kind of: motor.

is a broader term that covers: starter, starter motor, starting motor | synchronous motor | wiper motor.

has as a part: armature | brush | field magnet | rotor, rotor coil | stator, stator coil.

is a part of: electric drill | drum sander, electric sander, sander, smoother | electric clock | blower, electric fan | electric hammer | electric locomotive | electric mixer | electric refrigerator, fridge | electric toothbrush | electric typewriter | self-starter | trackless trolley, trolley coach, trolleybus ... show more.