hy·​per·​ven·​ti·​la·​tion | \ ˌhī-pər-ˌven-tə-ˈlā-shən How to pronounce hyperventilation (audio) \

Definition of hyperventilation

: excessive rate and depth of respiration leading to abnormal loss of carbon dioxide from the blood

Examples of hyperventilation in a Sentence

Recent Examples on the Web Some actors, tasked with the portrayal of traumatic encounters amid personal loss, might tend toward sobbing or hyperventilation. Emily Witt, The New Yorker, 15 Nov. 2021 Unfortunately, focusing too much on inhalations without fully exhaling can lead to overbreathing: inhaling more than exhaling, akin to hyperventilation. Dana Santas, CNN, 7 July 2021 Despite all the media hype and Democratic Party hyperventilation, the only person shot and killed on Jan. 6 was a protester, an unarmed woman who was an Air Force veteran. WSJ, 18 June 2021 Its useful observations — about his nullifying lack of collegiality, about his noxious self-righteousness — were undercut by its hyperventilation. Frank Bruni New York Times, Star Tribune, 17 June 2021 Another concern is the possibility of hyperventilation when navigating demanding terrain or that ordinary breathing could disrupt the sniff controller's code and crash the wheelchair. Ferris Jabr, Scientific American, 29 July 2010 Carbon dioxide tests by the researchers indicate that hyperventilation is not likely. Ferris Jabr, Scientific American, 29 July 2010 Coping is equal parts distraction — Squirrel! — militant adherence to public health protocols — hyperventilation and/or deep cleansing breaths while reciting the 3rd Step Prayer — and living in the m.o.m.e.n.t. Gary Robbins, San Diego Union-Tribune, 26 Nov. 2020 Many were comatose, and those who were conscious had bouts of nausea, vomiting, and hyperventilation. Carrie Arnold, National Geographic, 19 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hyperventilation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hyperventilation

1928, in the meaning defined above

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Time Traveler for hyperventilation

Time Traveler

The first known use of hyperventilation was in 1928

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Last Updated

28 Nov 2021

Cite this Entry

“Hyperventilation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperventilation. Accessed 19 Jan. 2022.

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More Definitions for hyperventilation


hy·​per·​ven·​ti·​la·​tion | \ -ˌvent-ᵊl-ˈā-shən How to pronounce hyperventilation (audio) \

Medical Definition of hyperventilation

: excessive ventilation specifically : excessive rate and depth of respiration leading to abnormal loss of carbon dioxide from the blood

called also overventilation

More from Merriam-Webster on hyperventilation

Britannica.com: Encyclopedia article about hyperventilation


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