fibrillation
noun
fi·bril·la·tion
ˌfi-brə-ˈlā-shən 
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 62-year-old had no history of atrial fibrillation, but he had previously been diagnosed with obesity, Type 1 diabetes, and hypothyroidism (a condition in which the thyroid gland does not produce enough thyroid hormone).
—
Beth Mole, Ars Technica, 5 Aug. 2024
Sometimes people with abnormal rhythms don’t feel their heart racing, as often happens with atrial fibrillation (smart devices are improving their ability to alert users to this possibility).
—Trisha Pasricha, Washington Post, 29 July 2024
Beta blockers are a group of medications most commonly used to treat conditions associated with your heart and blood vessels, such as angina (chest pain), hypertension (high blood pressure), or atrial fibrillation.
—Femi Aremu, Verywell Health, 1 July 2024
And, with the AFib Detection app, the Ring AIR has become the world’s first smart ring able to detect the common irregular heart rhythm atrial fibrillation.
—New Atlas, 16 July 2024
See all Example Sentences for fibrillation 
Beth Mole, Ars Technica, 5 Aug. 2024
Sometimes people with abnormal rhythms don’t feel their heart racing, as often happens with atrial fibrillation (smart devices are improving their ability to alert users to this possibility).
—Trisha Pasricha, Washington Post, 29 July 2024
Beta blockers are a group of medications most commonly used to treat conditions associated with your heart and blood vessels, such as angina (chest pain), hypertension (high blood pressure), or atrial fibrillation.
—Femi Aremu, Verywell Health, 1 July 2024
And, with the AFib Detection app, the Ring AIR has become the world’s first smart ring able to detect the common irregular heart rhythm atrial fibrillation.
—New Atlas, 16 July 2024
See all Example Sentences for fibrillation
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“Fibrillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibrillation. Accessed 18 Aug. 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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