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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Because of helium leaks and thruster failures after launching from Cape Canaveral, NASA opted to send Starliner back to Earth without its two crew, who stayed on board the space station eventually flying home on a SpaceX Crew Dragon and having remained in space for 10 months. Richard Tribou, The Orlando Sentinel, 2 May 2026 The spacecraft will use a 20-kWe reactor fueled by HALEU (High-Assay Low-Enriched Uranium) to power advanced electric thrusters. Mrigakshi Dixit, Interesting Engineering, 23 Apr. 2026 Rocket Lab on Tuesday added a high-performance, Hall-effect satellite thruster to its growing catalog of space technologies and flight services, Aviation Week & Space Technology reports. Stephen Clark, ArsTechnica, 17 Apr. 2026 The 1,430-pound (650 kilograms) ISSA-J1 spacecraft will use a suite of thrusters and imaging systems to conduct rendezvous and proximity operations, enabling detailed visual inspections of target satellites and helping determine the causes of their failures. Andrew Jones, Space.com, 16 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 10 May. 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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