fibrillation

noun
fi·​bril·​la·​tion | \ ˌfi-brə-ˈlā-shən How to pronounce fibrillation (audio) , ˌfī- \

Definition of fibrillation

1 : an act or process of forming fibers or fibrils
2a : a muscular twitching involving individual muscle fibers acting without coordination
b : very rapid irregular contractions of the muscle fibers of the heart resulting in a lack of synchronism between heartbeat and pulse

Examples of fibrillation in a Sentence

Recent Examples on the Web Some smart watches, for instance, contain a sensor that automatically detects and alerts people to atrial fibrillation, a dangerous heart rhythm. P. Murali Doraiswamy, Scientific American, "Digital Medicine Can Diagnose and Treat What Ails You," 10 Nov. 2020 As such, drops in potassium levels can lead to fatal irregular heart rhythms, such as ventricular fibrillation. Beth Mole, Ars Technica, "Rare case of black licorice poisoning kills man in Massachusetts," 25 Sep. 2020 The most common persistent symptoms include arthritis, fatigue, cognitive dysfunction, and vasculature issues such as atrial fibrillation, cardiomyopathies and blood clotting. Sumathi Reddy, WSJ, "Four Different Family Members. Four Different Covid-19 Outcomes.," 28 Sep. 2020 Heart disease, congestive heart failure and atrial fibrillation were noted by doctors on the death certificates. Glenn Howatt, Star Tribune, "Now with 2,000 COVID-19 deaths, Minnesota health leaders consider what state has learned and lost," 26 Sep. 2020 However, the severity of the heart attack, as well as complications such as heart failure or atrial fibrillation, can affect the ideal time frame, and individual patients should consult their doctors, Gerber added. Jack Guy, CNN, "A healthy sex life boosts long-term survival hopes for heart attack victims," 23 Sep. 2020 In Missouri’s Chillicothe Correctional Center, Lucille Duncan, a fifty-four-year-old domestic violence survivor with asthma, chronic obstructive pulmonary disease, and atrial fibrillation requested a mask and was denied one on April 3. Justine Van Der Leun, The New York Review of Books, "Confinement and Contagion," 10 Sep. 2020 Six years in, Apple Watches can detect signs of atrial fibrillation, a potentially deadly heart disorder. Washington Post, "Apple’s new watch event draws attention to its health-care play," 15 Sep. 2020 Aspirin isn’t recommended for people with atrial fibrillation (irregular beating of the heart), so they may be prescribed anticoagulants. Claire Gillespie, Health.com, "President Trump Denies Having a Series of Mini Strokes—but What Is This, Anyway?," 2 Sep. 2020

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

1845, in the meaning defined at sense 1

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Time Traveler for fibrillation

Time Traveler

The first known use of fibrillation was in 1845

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Statistics for fibrillation

Last Updated

19 Nov 2020

Cite this Entry

“Fibrillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibrillation. Accessed 30 Nov. 2020.

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More Definitions for fibrillation

fibrillation

noun
fi·​bril·​la·​tion | \ ˌfib-rə-ˈlā-shən How to pronounce fibrillation (audio) , ˌfīb- How to pronounce fibrillation (audio) \

Medical Definition of fibrillation

1 : an act or process of forming fibers or fibrils
2a : a muscular twitching involving individual muscle fibers acting without coordination
b : very rapid irregular contractions of the muscle fibers of the heart resulting in a lack of synchronism between heartbeat and pulse — see atrial fibrillation, ventricular fibrillation

More from Merriam-Webster on fibrillation

Nglish: Translation of fibrillation for Spanish Speakers

Britannica English: Translation of fibrillation for Arabic Speakers

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