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hypoxia

American  
[hahy-pok-see-uh] / haɪˈpɒk si ə /

noun

  1. Biology. a very low level of oxygen, as in an organic environment.

    The fish have developed a tolerance to the hypoxia of the swamp.

  2. Pathology. an abnormally low amount of oxygen in the body tissues.

    Premature newborns are routinely placed in incubators to treat or prevent hypoxia.


hypoxia British  
/ haɪˈpɒksɪə /

noun

  1. deficiency in the amount of oxygen delivered to the body tissues

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of hypoxia

First recorded in 1940–45; hyp- ( def. ) + oxy- 2 ( def. ) + -ia ( def. )

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Explanation

When a patient has hypoxia, some area of their body doesn't get enough oxygen. One of the symptoms of hypoxia is discolored skin, which can appear either bluish or bright red. There are many causes of hypoxia, which can affect either the entire body or just specific organs. Premature babies frequently suffer from hypoxia because their lungs are underdeveloped, and both mountain climbers and scuba divers are also at risk of developing hypoxia. When it occurs at high altitudes, hypoxia is called "altitude sickness." Hypoxia was coined in the mid-20th century, from the Greek hypo, "under," and oxygen.

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Vocabulary lists containing hypoxia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

If the colon irrigation and hypoxia training don’t chill me out, I have a feeling the long nature walks and lake swimming might.

From The Wall Street Journal ● Oct. 2, 2026

The resulting hypoxia killed virtually all of the fish living there.

From Science Daily ● Jun. 18, 2026

“Emergency room doctors discovered the boy had extremely low blood sugar levels and suffered from hypoxia and constant seizures.”

From Los Angeles Times ● Jul. 2, 2025

Some researchers say xenon increases production of a protein called erythropoietin that fights hypoxia, a condition that occurs when the body can't get enough oxygen.

From BBC ● May 21, 2025

It can’t be stressed strongly enough, moreover, that Hall, Fischer, and the rest of us were forced to make such critical decisions while severely impaired with hypoxia.

From "Into Thin Air" by Jon Krakauer

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