defibrillator

noun

de·​fi·​bril·​la·​tor (ˌ)dē-ˈfi-brə-ˌlā-tər How to pronounce defibrillator (audio)
: an electronic device that applies an electric shock to restore the rhythm of a fibrillating heart
defibrillate transitive verb
defibrillation noun

Examples of defibrillator in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The defibrillator pads had expired in July 2024. David J. Neal, Miami Herald, 5 Nov. 2025 In 2007, Cheney had a defibrillator device placed that was specially produced by manufacturer Medtronic to exclude a feature that would allow it to be programmed remotely over Wi-Fi. Jeanine Santucci, USA Today, 4 Nov. 2025 Most recently, in August 2025, Clinton was seen leaving an airport accompanied by individuals carrying what appeared to be a medical device, reportedly a defibrillator, sparking new health fears. Emma Bussey, FOXNews.com, 2 Nov. 2025 Someone had gone to search for a defibrillator. Judy L. Thomas, Kansas City Star, 9 Oct. 2025 See All Example Sentences for defibrillator

Word History

First Known Use

1952, in the meaning defined above

Time Traveler
The first known use of defibrillator was in 1952

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Cite this Entry

“Defibrillator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defibrillator. Accessed 9 Nov. 2025.

Medical Definition

defibrillator

noun
de·​fi·​bril·​la·​tor (ˈ)dē-ˈfib-rə-ˌlāt-ər How to pronounce defibrillator (audio) -ˈfīb- How to pronounce defibrillator (audio)
: an electronic device used to defibrillate a heart by applying an electric shock to it

More from Merriam-Webster on defibrillator

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