life-support system


Definition of life-support system

: an artificial or natural system that provides all or some of the items (such as oxygen, food, water, control of temperature and pressure, disposition of carbon dioxide and body wastes) necessary for maintaining life or health

Examples of life-support system in a Sentence

Recent Examples on the Web The crew will stay in orbit for three months, during which the life-support system and maintenance will be tested. Cnn Editorial Research, CNN, 19 Nov. 2021 Three Chinese astronauts returned in September from a successful 90-day visit to the station, spending their time checking Tianhe’s life-support system, going on spacewalks and deploying the module’s robotic arm. Washington Post, 15 Oct. 2021 First of all, simply because the ocean is our planet's main life-support system. Nell Lewis, CNN, 3 May 2021 Getting him out damages a life-support system, and the ensuing issues cause a moral conundrum about who lives and who dies. Brian Truitt, USA TODAY, 23 Apr. 2021 The power grid is modern society’s life-support system. Robinson Meyer, The Atlantic, 21 Feb. 2021 For seven weeks, Veloz was connected to a ventilator and five of them also to an ECMO (extracorporeal membrane oxygenation) machine, a life-support system that does the work of the heart and lungs and oxygenates blood in critically ill patients. Imelda García, Dallas News, 30 Dec. 2020 In the latest incident, the Russian space agency Roscosmos reported cosmonauts had repaired their oxygen generator – a key life-support system in the Zvezda module. NBC News, 2 Nov. 2020 The life-support system that Gatens spent nearly a decade working on would never be used for Freedom. Daniel Oberhaus, Wired, 30 Oct. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'life-support system.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of life-support system

1959, in the meaning defined above

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Time Traveler for life-support system

Time Traveler

The first known use of life-support system was in 1959

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Dictionary Entries Near life-support system

life support

life-support system


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Last Updated

29 Nov 2021

Cite this Entry

“Life-support system.” Dictionary, Merriam-Webster, Accessed 19 Jan. 2022.

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More Definitions for life-support system

life-support system


Medical Definition of life-support system

: a system that provides all or some of the items (as oxygen, food, water, and disposition of carbon dioxide and body wastes) necessary for maintaining life or health: as
a : one used to maintain the health of a person or animal in outer space, underwater, or in a mine
b : one used to maintain the life of an injured or ill person unable to maintain certain physiological processes without artificial support

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