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Elimination of nitrogen from lungs and body tissues by breathing gases devoid of nitrogen.
the elimination of nitrogen from the lungs and body tissues during a period of breathing pure oxygen. See also nitrogen washout curve.
In aerospace medicine, the removal of nitrogen from the body of a person preparing to fly in an environment in which the barometric pressure will be much lower than at sea level. Prior to the flight, the person breathes 100% oxygen for a variable length of time, depending on the anticipated degree of reduced barometric pressure.Synonym: preoxygenation See: decompression illness