An engine or motor is a machine designed to convert energy into useful mechanical motion. Heat engines, including internal combustion engines and external combustion engines burn a fuel to create heat, which then creates motion. Electric motors convert electrical energy into mechanical motion, pneumatic motors use compressed air and others—such as clockwork motors in wind-up toys—use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create motion.

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  1. Ingenuity; cunning, trickery, guile.
  2. The result of cunning; something ingenious, a contrivance; (in negative senses) a plot, a scheme.
  3. Natural talent; genius.
  4. Anything used to effect a purpose; any device or contrivance; an agent.
  5. A large construction used in warfare, such as a battering ram, catapult etc.
  6. A tool; a utensil or implement.
  7. A complex mechanical device which converts energy into useful motion or physical effects.
  8. A person or group of people which influence a larger group; a driving force.
  9. The part of a car or other vehicle which provides the force for motion, now especially one powered by internal combustion.
  10. A self-powered vehicle, especially a locomotive, used for pulling cars along a track.
  11. A software or hardware system responsible for a specific technical task (usually with qualifying word).
    a graphics engine; a physics engine


  1. To assault with an engine.
  2. To equip with an engine; said especially of steam vessels.
    Vessels are often built by one firm and engined by another.
  3. To rack; to torture.

The above text is a snippet from Wiktionary: engine
and as such is available under the Creative Commons Attribution/Share-Alike License.

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