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 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, "After two decades in orbit, space station faces the inevitable repairs," 2 Nov. 2020 The life-support system that Gatens spent nearly a decade working on would never be used for Freedom. Daniel Oberhaus, Wired, "How Humanity Spent Its First 20 Years in Orbit Aboard the ISS," 30 Oct. 2020 Anyone who dares to venture past our world’s upper atmosphere will die painfully without a life-support system. Rebecca Boyle, Scientific American, "Can a Moon Base be Safe for Astronauts?," 22 Oct. 2020 And for the first time ever, some of the components in an astronaut life-support system will be designed by artificial intelligence. Daniel Oberhaus, Wired, "NASA’s New Moon-Bound Space Suits Will Get a Boost From AI," 29 June 2020 The life-support system temporarily replaces the function of the heart and lungs. oregonlive, "COVID-19 survival rate improves significantly at local hospitals," 9 July 2020 Jesse Craft is a senior design engineer at Jacobs, a major engineering firm based in Dallas that was tapped by NASA to revamp the xEMU life-support system. Daniel Oberhaus, Wired, "NASA’s New Moon-Bound Space Suits Will Get a Boost From AI," 29 June 2020 Dive protocols required that Vescovo check in with the surface every fifteen minutes and announce his depth and heading and the status of his life-support system. Ben Taub, The New Yorker, "Thirty-six Thousand Feet," 10 May 2020 Spacecraft and samples from the Apollo missions have shown that the moon has potentially massive amounts of water frozen as hard as granite in deposits deep at its poles, which future astronauts could mine for their life-support systems. Marina Koren, The Atlantic, "The Pros and Cons of a Lunar Pit Stop," 18 Feb. 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.

See More

First Known Use of life-support system

1959, in the meaning defined above

Keep scrolling for more

Learn More about life-support system

Time Traveler for life-support system

Time Traveler

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

See more words from the same year

Statistics for life-support system

Last Updated

16 Nov 2020

Cite this Entry

“Life-support system.” Dictionary, Merriam-Webster, Accessed 5 Dec. 2020.

Keep scrolling for more

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

More from Merriam-Webster on life-support system Encyclopedia article about life-support system

Comments on life-support system

What made you want to look up life-support system? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!