Meaning of PROPELLER in English
Device with a central hub and radiating blades placed so that each forms part of a helical (spiral) surface, used to propel a vehicle such as a ship or airplane .
By its rotation in water or air, the propeller produces thrust on the blades, which gives forward motion to the vehicle.
Britannica Concise Encyclopedia. Краткая энциклопедия Британика. 2012