thruster

noun

thrust·​er ˈthrə-stər How to pronounce thruster (audio)
variants or less commonly thrustor
: one that thrusts
especially : an engine (such as a jet engine) that develops thrust by expelling a jet of fluid or a stream of particles

Examples of thruster 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.
The craft reacted to the pressure signature by powering off the thrusters. ArsTechnica, 21 June 2025 The results were disappointing, mainly because the thruster gases around the spacecraft scattered the light. Jamie Carter, Space.com, 16 June 2025 Fins Most surfboards have fins in a thruster configuration, consisting of three fins in a triangular formation. Bestreviews, Chicago Tribune, 3 June 2025 Related article Once ‘dead’ thrusters on the farthest spacecraft from Earth are in action again Though less frequent, galaxy mergers are still happening all the time, Kim said. Kameryn Griesser, CNN Money, 23 May 2025 See All Example Sentences for thruster

Word History

First Known Use

1597, in the meaning defined above

Time Traveler
The first known use of thruster was in 1597

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Cite this Entry

“Thruster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thruster. Accessed 30 Jun. 2025.

Kids Definition

thruster

noun
thrust·​er ˈthrəs-tər How to pronounce thruster (audio)
: one that thrusts
especially : an engine that produces thrust by discharging a jet of fluid or a stream of particles

More from Merriam-Webster on thruster

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