Meanings
nounreaction engine (plural reaction engines)
plural reaction engines
- Any engine that generates thrust by expelling matter, especially hot gases produced by igniting a fuel; either a rocket engine or several types of jet engine.
Synonyms & antonyms
nouna jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream
Similar
reaction-propulsion engine
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
reaction engine. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/reaction%20engine
MLA
“reaction engine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/reaction%20engine. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “reaction engine,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/reaction%20engine.
Source: reaction engine on Wiktionary, CC BY-SA 4.0.