reaction engine

See synonyms for reaction engine on
nounAeronautics, 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.

Origin of reaction engine

First recorded in 1865–70
  • Also called reaction motor.

Words Nearby reaction engine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use reaction engine in a sentence

British Dictionary definitions for reaction engine

reaction engine

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012