AskDefine | Define hypoxia

Dictionary Definition

hypoxia n : a very strong drive resulting from a deficiency of available oxygen in the blood and bodily tissues (short of anoxia)

User Contributed Dictionary



  1. A condition in which tissues are deprived of an adequate supply of oxygen.

Derived terms

Extensive Definition

Hypoxia literally means "a deficiency in oxygen." It can refer to:
  • Hypoxia (medical), a shortage of oxygen in the body. Hypoxaemia is the reduction of oxygen specifically in the blood; anoxia is when there is no oxygen available at all.
    • Environmental hypoxia, a condition in high altitudes such as mountains where the reduced partial pressure of oxygen available leads to hypoxia.
    • Ischemia, a restriction in blood supply (and therefore oxygen supply) to an organ or section of the body, generally due to constriction or blocking of blood vessels.
  • Hypoxia (environmental) or oxygen depletion, a reduced concentration of dissolved oxygen in a water body leading to stress and death in aquatic organisms.

In popular culture

See also

  • Oxygen saturation, a relative measure of the oxygen dissolved or carried in a medium; a measure of the severity of hypoxic conditions.
  • Oxygen toxicity (hyperoxia), the opposite condition of hypoxia, an excess of oxygen in body tissues.
  • Time of Useful Consciousness, a measure of how quickly hypoxia renders a person incapable of normal thought.
  • Respiratory Acidosis, a decrease in physiological pH due to hypoventilation or decrease in gas exchange by alveoli
hypoxia in German: Hypoxie
hypoxia in Lithuanian: Hipoksija
hypoxia in Dutch: Hypoxie
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