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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According to Kim, Elytra will be equipped with the same systems used in the Blue Ghost landing — including the reaction control system thrusters that successfully performed Blue Ghost's final descent to the moon — for the Sinequone mission. Karoline Leonard, Austin American Statesman, 2 July 2025 To avoid this, the engineers spent March of this year coaxing the secondary thrusters back to life. David Szondy, New Atlas, 18 May 2025 The heaters could only function if the thrusters are also switched on. Ashley Strickland, CNN Money, 14 May 2025 The craft reacted to the pressure signature by powering off the thrusters. ArsTechnica, 21 June 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 12 Jul. 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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