service module


: 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 While Starliner’s crew module will return to Earth intact, its service module (containing the RCS thrusters and leaky helium system) will be jettisoned to incinerate in the upper atmosphere, curtailing any further direct investigations of malfunctioning components. Lee Billings, Scientific American, 26 June 2024 Complicating the matter is the fact that the helium and thruster problems are located within Starliner’s service module, which provides the bulk of the spacecraft’s engine power. Christian Davenport, Washington Post, 25 June 2024 The service module is jettisoned prior to re-entry and burns up in the atmosphere. William Harwood, CBS News, 21 June 2024 Of the five service module thrusters that failed during flight, all but one have been recovered, officials said. Jackie Wattles, CNN, 18 June 2024 See all Example Sentences for service module 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'service module.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1961, in the meaning defined above

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

Dictionary Entries Near service module

Cite this Entry

“Service module.” Dictionary, Merriam-Webster, Accessed 13 Jul. 2024.

Kids Definition

service module

: a part of a space vehicle containing oxygen, water, fuel cells, fuel tanks, and the main rocket engine
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