jet engine

noun

: an engine that produces motion as a result of the rearward discharge of a jet of fluid
specifically : an airplane engine that uses atmospheric oxygen to burn fuel and produces a rearward discharge of heated air and exhaust gases see airplane illustration

Examples of jet engine in a Sentence

Recent Examples on the Web
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The powdered rock can cause a jet engine to shut down. CBS News, 13 Mar. 2025 Here, in front of a crowd of diehards that made a couple thousand people sound like a jet engine, those larger worries couldn’t feel further away. Kyle Feldscher, CNN, 12 Mar. 2025 While the latest generation of both supersonic and hypersonic aircraft mostly use jet engines and atmospheric oxygen for combustion, spaceplanes, generally speaking, also have wings but use rocket engines and carry O2 on board. J. George Gorant, Robb Report, 5 Mar. 2025 Sometimes birds will be ingested into the jet engine and cause catastrophic engine failure. Anelise Chen, The Atlantic, 25 Feb. 2025 See All Example Sentences for jet engine

Word History

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of jet engine was in 1933

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Cite this Entry

“Jet engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20engine. Accessed 15 Apr. 2025.

Kids Definition

jet engine

noun
: an engine that produces motion as a result of the rearward discharge of a jet of fluid
especially : an aircraft engine that uses atmospheric oxygen to burn fuel and produces a rearward discharge of heated air and exhaust gases

More from Merriam-Webster on jet engine

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