reaction engine


noun Aeronautics, 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.

Origin of reaction engine

First recorded in 1865–70

Example sentences from the Web for reaction engine

British Dictionary definitions for reaction engine

reaction engine

reaction motor


noun

an engine, such as a jet or rocket engine, that ejects gas at high velocity and develops its thrust from the ensuing reaction