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verb (used without object), hy·per·ven·ti·lat·ed, hy·per·ven·ti·lat·ing.
  1. to be afflicted with hyperventilation; breathe abnormally fast and deep.
verb (used with object), hy·per·ven·ti·lat·ed, hy·per·ven·ti·lat·ing.
  1. to cause (a patient) to breathe more rapidly and deeply than normal.

Origin of hyperventilate

First recorded in 1930–35; back formation from hyperventilation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for hyperventilate


  1. (intr) 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

Word Origin and History for hyperventilate


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

Online Etymology Dictionary, © 2010 Douglas Harper