Noun

(en noun)

A rotating part of a mechanical device, for example in an electric motor, generator, alternator or pump.

*{{quote-magazine, year=2013, month=July-August, author= Lee S. Langston, magazine=(American Scientist)

, title= The Adaptable Gas Turbine , passage=Turbines have been around for a long time—windmills and water wheels are early examples. The name comes from the Latin turbo'', meaning ''vortex , and thus the defining property of a turbine is that a fluid or gas turns the blades of a rotor , which is attached to a shaft that can perform useful work.}}

The wing of a helicopter or similar aircraft.