- to be afflicted with hyperventilation; breathe abnormally fast and deep.
- 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
- (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
Online Etymology Dictionary, © 2010 Douglas Harper