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 Adams was rushed to the hospital after receiving shocks via a defibrillator. Beth Ann Mayer, Parents, 24 May 2024 Current state law requires training in emergency action plans, seizure plans and operation of automatic external defibrillators. Sam Cohn, Baltimore Sun, 16 May 2024 Eyewitnesses confirmed that the flight crew was slow to respond and did not appear to know how to operate the defibrillator, according to the lawsuit. Elizabeth Campbell, Fort Worth Star-Telegram, 14 May 2024 Earlier this year, the IG released a report on inmate deaths in custody which found that BOP employees don't always respond to medical emergencies timely or use appropriate medical equipment, like automatic external defibrillators. Jaclyn Diaz, NPR, 22 May 2024 See all Example Sentences for defibrillator 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'defibrillator.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1952, in the meaning defined above

Time Traveler
The first known use of defibrillator was in 1952

Dictionary Entries Near defibrillator

Cite this Entry

“Defibrillator.” Dictionary, Merriam-Webster, Accessed 15 Jun. 2024.

Medical Definition


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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