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A condition in which there is oxygen deficiency in a habitat or a body part.


In a body part, hypoxia results when the oxygen is below physiological levels in spite of adequate blood perfusion. For instance, the brain receiving inadequate amounts of oxygen causes a cascade of events that may eventually harm the cells and tissues of brain.

Related forms: hypoxic (adjective).

Compare: hyperoxia, hypoxemia
See also: anoxia

Related terms: