noun
a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream
• Syn: ↑reaction-propulsion engine
• Hypernyms: ↑engine
• Hyponyms: ↑ion engine, ↑jet engine
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noun : an engine that develops thrust by expelling a jet of fluid or a stream of particles
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Aeron., Rocketry.
an engine that produces power as a reaction to the momentum given to gases ejected from it, as a rocket or jet engine. Also called reaction motor.
[1865-70]
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reaction engine,
an engine which expels a stream of burned exhaust gases at high velocity, the reaction from which creates a forward accelerating force; thrustor; jet engine.
Useful english dictionary. 2012.