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
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.
Progress 91, which launched on Feb. 27, remains at the station, docked to its Zvezda service module. Mike Wall, Space.com, 3 July 2025 Once the deorbit rocket firing is complete, the Starliner's service module, housing the OMACs, 28 RCS jets, the helium tanks and other critical but no-longer-needed systems, will be jettisoned to burn up on the atmosphere. William Harwood, CBS News, 6 Sep. 2024 But while SpaceX was prepared to perform a static fire Thursday to check on the booster repairs, NASA announced the visit from Axiom Space was going on hold because of an investigation with Russian space agency Roscosmos into recent repairs made on the Zvezda service module. Richard Tribou, The Orlando Sentinel, 12 June 2025 For several years, ground teams have monitored a slow air leak in the aft part of the service module, and NASA officials have identified it as a safety risk. ArsTechnica, 13 June 2025 See All Example Sentences for service module

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of service module was in 1961

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Cite this Entry

“Service module.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/service%20module. Accessed 27 Jul. 2025.

Kids Definition

service module

noun
: a part of a space vehicle containing oxygen, water, fuel cells, fuel tanks, and the main rocket engine
Last Updated: - Updated example sentences
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