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
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Today, satellites are limited by attitude control systems, which mainly use small thrusters to keep them pointing the right way. Mrigakshi Dixit, Interesting Engineering, 9 Apr. 2026 At this point, the spacecraft’s thrusters will help to slow the descent. Claire Cameron, Scientific American, 9 Apr. 2026 After their Orion spacecraft fired its thrusters to take the crew of NASA’s ongoing Artemis 2 mission away from Earth on April 2, NASA astronaut and commander Reid Wiseman took a moment to snap a breathtaking photo of our world . Victor Tangermann, Futurism, 8 Apr. 2026 On Friday, Orion is scheduled to fire its thrusters to fine tune its path toward the moon. Tariq Malik, Space.com, 3 Apr. 2026 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 11 Apr. 2026.

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

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