reaction engine

noun

, Aeronautics, Rocketry.

1. an engine that produces power as a reaction to the momentum given to gases ejected from it, as a rocket or jet engine.

reaction engine

noun

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

Word History and Origins

Origin of reaction engine¹

First recorded in 1865–70

Example Sentences

Out of the port they could see the red flare of a reaction engine; the next ship in their sector, speeding forward.

From Project Gutenberg

This also was the invention of Hero, and was a reaction engine, on the principle of the eolipile.

From Project Gutenberg

It revolved by the agency of steam, and was of the form that we should now call a reaction-engine.

From Project Gutenberg