de·​fi·​bril·​la·​tor | \ (ˌ)dē-ˈfi-brə-ˌlā-tər How to pronounce defibrillator (audio) \

Definition of defibrillator

: an electronic device that applies an electric shock to restore the rhythm of a fibrillating heart

Other Words from defibrillator

defibrillate \ (ˌ)dē-​ˈfi-​brə-​ˌlāt How to pronounce defibrillator (audio) \ transitive verb
defibrillation \ (ˌ)dē-​ˌfi-​brə-​ˈlā-​shən How to pronounce defibrillator (audio) \ noun

Examples of defibrillator in a Sentence

Recent Examples on the Web Another woman had her shirt ripped open as a paramedic applied defibrillator paddles. Washington Post, 7 Nov. 2021 Eskins told NBC News that there were not enough medics or medical supplies, including defibrillator machines and IV kits, to help the injured. NBC News, 7 Nov. 2021 But the movie seems to mistake the taut minimalism of the original for something that needs to be goosed and adrenalized, a thriller on constant defibrillator. Leah Greenblatt,, 10 Sep. 2021 Michael Garrett, 54 and homeless, has congestive heart failure, asthma and a defibrillator in his chest. New York Times, 5 Aug. 2021 The concern follows research published earlier this year that found an iPhone 12 temporarily deactivated a defibrillator when held to a patient's skin just above the implant. Joe Carlson, Star Tribune, 23 July 2021 But the heart condition had forced surgery his freshman season to implant a defibrillator that made teams nervous. Chuck Carlton, Dallas News, 11 Mar. 2021 Doctors implanted a subcutaneous cardioverter defibrillator, an electronic device to constantly monitor her heart rhythm. Dana Hunsinger Benbow, The Indianapolis Star, 20 Oct. 2021 Eriksen went into cardiac arrest and was resuscitated with a defibrillator. NBC News, 18 Oct. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'defibrillator.' 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 defibrillator

1952, in the meaning defined above

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The first known use of defibrillator was in 1952

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Last Updated

5 Dec 2021

Cite this Entry

“Defibrillator.” Dictionary, Merriam-Webster, Accessed 22 Jan. 2022.

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More Definitions for defibrillator



English Language Learners Definition of defibrillator

: a device that gives an electric shock to a person's heart in order to make it beat normally again especially after a heart attack


de·​fi·​bril·​la·​tor | \ (ˈ)dē-ˈfib-rə-ˌlāt-ər How to pronounce defibrillator (audio) , -ˈfīb- How to pronounce defibrillator (audio) \

Medical Definition of defibrillator

: an electronic device used to defibrillate a heart by applying an electric shock to it

More from Merriam-Webster on defibrillator

Nglish: Translation of defibrillator for Spanish Speakers


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