- a plant, including engines, dynamos, etc., and the building or buildings necessary for the generation of power, as electric or nuclear power.
- the machinery for supplying power for a particular mechanical process or operation.
- the engine, motor, or other power source along with related ignition, transmission, etc., components of a vehicle, aircraft, machine, etc.
- the complex, including machinery, associated equipment, and the structure housing it, that is used in the generation of power, esp electrical power
- the equipment supplying power to a particular machine or for a particular operation or process
