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service module
noun
: a space vehicle module that contains oxygen, water, fuel cells, propellant tanks, and the main rocket engine
Examples of service module in a Sentence
Recent Examples on the Web
The known helium leaks did not get worse and the reaction control system thrusters in the ship's service module, the ones that had problems early in the mission, worked as required to safely move the spacecraft away from the station and to keep it stable during the de-orbit burn.
—William Harwood, CBS News, 7 Sep. 2024
By design, the service module will not survive the trip back to Earth.
—Jackie Wattles, CNN, 28 June 2024
Before the aerobraking maneuver, the X-37B will jettison its service module, which will reenter the Earth's atmosphere in accordance with international space debris minimization protocols.
—David Szondy, New Atlas, 10 Oct. 2024
And the unit that houses the troubled RCS thrusters and the helium leaks — called the service module — was not intended to survive the trip home.
—Jackie Wattles, CNN, 6 Sep. 2024
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Word History
First Known Use
1961, in the meaning defined above
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Cite this Entry
“Service module.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/service%20module. Accessed 30 Nov. 2024.
Kids Definition
service module
noun
: a part of a space vehicle containing oxygen, water, fuel cells, fuel tanks, and the main rocket engine
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