Rephrase your question.
A propeller is a rotating wing.
a Propeller
a propeller
A uni-rotating propeller is one that can go around in both directions. This type of propeller typically will do different things depending on which direction it is going.
It is the propeller.
propeller.
propeller
Excrement - it is "when the excrement hits the rotating propeller blades."
The tail propeller keeps the helicopter straight.
There are many, many examples. Generally, rotating shafts are used to transmit power from a producer to a user device. A few examples: Drive shaft in an automobile- transmits power from the engine to the wheels. Propeller shaft in a ship- transmits power form the engine to the propeller. Pump shaft- transmits power from a motor to the pump impeller. Rotating shafts are all over the place. You can find dozens of examples in the typical appliances in any typical home.
It's propeller or jet produces thrust by rotating under engine power.
Propeller or the prop. In a jet plane the it's called a turbine