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[hahy-per-ven-tl-eyt] /ˌhaɪ pərˈvɛn tlˌeɪt/
verb (used without object), hyperventilated, hyperventilating.
to be afflicted with hyperventilation; breathe abnormally fast and deep.
verb (used with object), hyperventilated, hyperventilating.
to cause (a patient) to breathe more rapidly and deeply than normal.
Origin of hyperventilate
1930-35; back formation from hyperventilation Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for hyperventilate
  • The two stars together were enough to make fans hyperventilate.
  • People are being caused to hyperventilate about sea level rises because of glacial melting.
  • Be calm, don't get so hyped up that you tax an already effected and taxed respiratory system, ie freak out and hyperventilate.
  • If you do hyperventilate, cover your mouth and nose with the paper bag.
  • Upon her return, she appeared anxious and began to hyperventilate.
  • When suddenly immersed in cold water, people often hyperventilate and inhale water.
British Dictionary definitions for hyperventilate


(intransitive) to breathe in an abnormally deep, long, and rapid manner, sometimes resulting in cramp and dizziness
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
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Word Origin and History for hyperventilate

"breathe deeply and rapidly," 1931, from hyper- + ventilate. Related: Hyperventilated; hyperventilating.

Online Etymology Dictionary, © 2010 Douglas Harper
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