U.S. Air Force. (2010, November). F100 F-15 engine. Retrieved from https://upload.wikimedia.org/wikipedia/commons/6/69/F100_F-15_engine.JPG Photograph of a jet engine in operation, with a long converging plume of hot gas streaming out from the nozzle
Short Definition:
A jet engine is a reaction engine that produces a jet of heated gas to be discharged from the engine as a reaction mass. The Propelling gas is usually air, especially when the engine is used in the atmosphere on flying vehicles, but can be other gas or liquid.
Detailed Definition:
A jet engine is a reaction engine that discharges a fast-moving (often supersonic) jet of hot gas (usually air, if the engine is used in the atmosphere) and to generate thrust. Jet engines are usually internal combustion engines and used everywhere: on planes, boats and rockets.
Etymology:
Jet – from French jet– throw, cast, gush, spurtEngine – from Middle English engyn or Anglo-Norman engine or Old French engin– skill, cleverness, war machine
Sample Sentences:
The jet engine roared as the airplane accelerated down the runway.