fibrillation

noun

fi·​bril·​la·​tion ˌfi-brə-ˈlā-shən How to pronounce fibrillation (audio)
ˌfī-
1
: an act or process of forming fibers or fibrils
2
a
: 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 The certificate, published by the Los Angeles Department of Public Health in April and obtained by USA TODAY Wednesday, also reveals that in addition to a years-long battle with the disease, heart failure and atrial fibrillation contributed to his death. Taijuan Moorman, USA TODAY, 1 May 2024 In an interview with Mark Yarm for The New York Times, following the cancellation of the events, the musician revealed that he’s been living with the common heart rhythm abnormality atrial fibrillation for several years. Matthew Strauss, Pitchfork, 20 June 2024 Recent studies revealed a complex picture: while some research suggests that omega-3 fatty acids in fish oil can reduce triglycerides and potentially improve heart health, other studies show that high doses of fish oil are associated with a higher risk of atrial fibrillation (AFib). Stephanie Brown, Verywell Health, 4 June 2024 Atrial fibrillation is the most common kind of heart arrhythmia, or when the heart beats irregularly, according to the CDC. Taijuan Moorman, USA TODAY, 1 May 2024 See all Example Sentences for fibrillation 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fibrillation.' 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

1845, in the meaning defined at sense 1

Time Traveler
The first known use of fibrillation was in 1845

Dictionary Entries Near fibrillation

Cite this Entry

“Fibrillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibrillation. Accessed 22 Jul. 2024.

Medical Definition

fibrillation

noun
fi·​bril·​la·​tion ˌfib-rə-ˈlā-shən How to pronounce fibrillation (audio) ˌfīb- How to pronounce fibrillation (audio)
1
: an act or process of forming fibers or fibrils
2
a
: 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

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