fibrillation
noun
fi·bril·la·tion
ˌfi-brə-ˈlā-shən 
ˌfī-
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
PACs can predict atrial fibrillation and stroke (see below).
—
Rafle Fernandez, Verywell Health, 10 Sep. 2024
That said, the Withings Body Scan's handle also facilitates a six-lead ECG to detect atrial fibrillation (an irregular heartbeat), a feature not available on the Body Pod.
—PCMAG, 24 July 2024
Over time, atrial fibrillation increases stroke risk substantially and can also lead to heart failure.6
Alcoholic Cardiomyopathy
Alcoholic cardiomyopathy is a condition that causes the heart muscle to become weaker.
—Kelly Burch Published, Verywell Health, 2 Oct. 2024
Cross-linking chemically treats the fibers after they are spun to prevent fibrillation.
—Sj Studio, Sourcing Journal, 27 Sep. 2024
See all Example Sentences for fibrillation 
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Rafle Fernandez, Verywell Health, 10 Sep. 2024
That said, the Withings Body Scan's handle also facilitates a six-lead ECG to detect atrial fibrillation (an irregular heartbeat), a feature not available on the Body Pod.
—PCMAG, 24 July 2024
Over time, atrial fibrillation increases stroke risk substantially and can also lead to heart failure.6
Alcoholic Cardiomyopathy
Alcoholic cardiomyopathy is a condition that causes the heart muscle to become weaker.
—Kelly Burch Published, Verywell Health, 2 Oct. 2024
Cross-linking chemically treats the fibers after they are spun to prevent fibrillation.
—Sj Studio, Sourcing Journal, 27 Sep. 2024
See all Example Sentences for fibrillation
Dictionary Entries Near fibrillation
Cite this Entry
“Fibrillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibrillation. Accessed 17 Nov. 2024.
Copy CitationMedical Definition
fibrillation
noun
fi·bril·la·tion
ˌfib-rə-ˈlā-shən
ˌfīb-
ˌfīb-
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
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