Dictionary

life–support system

noun

Definition of LIFE-SUPPORT SYSTEM

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

First Known Use of LIFE-SUPPORT SYSTEM

1959

life–support system

noun    (Medical Dictionary)

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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