especially: an engine (such as a jet engine) that develops thrust by expelling a jet of fluid or a stream of particles
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That week-plus stretched into nine months due to thruster problems aboard Starliner that NASA concluded made the ship unsafe for crews.—Jeffrey Kluger, Time, 2 Jan. 2026 The system consists of three 12-kilowatt Hall thrusters that are more than twice as powerful as current in-space electric ones.—Prabhat Ranjan Mishra, Interesting Engineering, 21 Dec. 2025 But Starliner suffered thruster problems and helium leaks on the way up, so NASA delayed the vehicle's return to study the issues.—Mike Wall, Space.com, 21 Dec. 2025 As such, conventional thrusters would quickly run out of fuel.—Sven Bilén, The Conversation, 16 Dec. 2025 See All Example Sentences for thruster
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