Hyperventilation means: Hyperventilation refers to the physiological reaction to rapid breathing, which creates a high level of toxic substances in the bloodstream at a faster rate than the body can handle. This can lead to nausea and passing out. It is rare, but it has been known to cause death. (in Community Dictionary, added by Zackery Contreras)

What else does Hyperventilation mean?

  • Deep or abnormally rapid respiration that results in the loss carbon dioxide from blood. This can cause a drop in blood pressure and tingling in the extremities. (in AZ Dictionary)