Generator

Generator is a machine that converts one form of energy into another, especially mechanical energy into electrical energy, as a dynamo, or electrical energy into sound, as an acoustic generator.

Generators also produce the electrical power required for automobiles, aircraft, ships, and trains.
The mechanical power for an electric generator is usually obtained from a rotating shaft and is equal to the shaft torque multiplied by the rotational, or angular, velocity. The mechanical power may come from a number of sources: hydraulic turbines at dams or waterfalls; wind turbines; steam turbines using steam produced with heat from the combustion of fossil fuels or from nuclear fission; gas turbines burning gas directly in the turbine; or gasoline and diesel engines. The construction and the speed of the generator may vary considerably depending on the characteristics of the mechanical prime mover.

Sources:

Corrosion Dictionary https://www.corrosionpedia.com/dictionary

Google’s English dictionary by Oxford Languages https://languages.oup.com/google-dictionary-en/