hypoxia

noun

hyp·​ox·​ia hi-ˈpäk-sē-ə How to pronounce hypoxia (audio) hī- How to pronounce hypoxia (audio)
: a deficiency of oxygen reaching the tissues of the body

Examples of hypoxia in a Sentence

Recent Examples on the Web
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The method of nitrogen hypoxia requires prisoners to breathe in the gas through an industrial-grade mask while strapped to a gurney and being deprived of oxygen. Abigail Brooks, NBC news, 12 June 2026 International human rights leaders have condemned nitrogen hypoxia as experimental, violent and potentially torturous. Emily Mae Czachor, CBS News, 11 June 2026 Eventually, hypoxia would set in, causing damage to brain cells within minutes, permanent brain damage between four and six minutes, and finally major organ failure and death. Alan Bradley, Space.com, 8 May 2026 Airplanes flying at high altitudes must maintain pressurized cabins because air pressure outside the aircraft drops with altitude, making normal breathing difficult and increasing the risk of hypoxia. Divya Dubey, Encyclopedia Britannica, 31 Mar. 2026 See All Example Sentences for hypoxia

Word History

Etymology

New Latin

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of hypoxia was in 1941

Browse Nearby Words

Cite this Entry

“Hypoxia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hypoxia. Accessed 22 Jun. 2026.

Medical Definition

hypoxia

noun
hyp·​ox·​ia hip-ˈäk-sē-ə How to pronounce hypoxia (audio) hī-ˈpäk- How to pronounce hypoxia (audio)
: a deficiency of oxygen reaching the tissues of the body
Mountain sickness is caused primarily by a lack of oxygen, or hypoxia. Atmospheric pressure decreases as one moves away from sea level, and because the percentage of oxygen in air remains constant, the concentration of oxygen is decreased. Lower levels of oxygen initiate a series of potentially fatal physiological changes.Charles S. Houston, Scientific American

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