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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Beyond medical uses The team also equipped the robot with a tiny camera, enabling it to inspect hard-to-reach spots inside the jet engine model. Neetika Walter, Interesting Engineering, 16 Oct. 2025 The floor buffers come out, whining like jet engines in the hallways, erasing over a month’s worth of shoe scuffs that made the place look like the dasher boards at the hockey rink. Mark Glende, Twin Cities, 15 Oct. 2025 Klonoff likens the technology of the time to the Wright brothers’ first aircraft prototypes as compared with today’s jet engines. Carrie Arnold, Scientific American, 14 Oct. 2025 The critical minerals go into many products, from jet engines, radar systems and electric vehicles to consumer electronics including laptops and phones. NPR, 12 Oct. 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

Browse Nearby Words

Cite this Entry

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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!