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hyperventilate

[hahy-per-ven-tl-eyt]
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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.
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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.
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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

hyperventilate

verb
  1. (intr) to breathe in an abnormally deep, long, and rapid manner, sometimes resulting in cramp and dizziness
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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

v.

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

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Online Etymology Dictionary, © 2010 Douglas Harper