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.
Ground station crews that today coordinate elegant sequences of thruster burns will face more chaotic obstacle courses and bigger debris fields blooming across their display monitors. IEEE Spectrum, 30 Sep. 2025 The same Luch/Olymp satellite then fired its thrusters to begin drifting to another slot thousands of miles away to sidle up next to another Intelsat bird named Intelsat 39. Benj Edwards, ArsTechnica, 25 Sep. 2025 Ionized gas is called a plasma, and it is electrically charged such that it can be directed and accelerated by electromagnetic fields out through a thruster nozzle, producing thrust. Keith Cooper, Space.com, 16 Sep. 2025 If engines fail, gas thrusters activate to reduce speed and stabilize the plane. Sujita Sinha, Interesting Engineering, 16 Sep. 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 7 Oct. 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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