1 a device having blades radiating from a central hub that is rotated to produce thrust to propel a ship, aircraft, etc.
2 a person or thing that propels
n the shaft that transmits power from the gearbox to the differential gear in a motor vehicle or from the engine to the propeller in a ship or aircraft
n an early form of ship's propeller in which an Archimedes' screw is used to produce thrust by accelerating a flow of water
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