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AFib

American  
[ey-fib] / ˈeɪˌfɪb /

abbreviation

Pathology.
  1. atrial fibrillation.


Etymology

Origin of AFib

First recorded in 1985–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is a device that reduces stroke risk for AFib patients by sealing the left atrial appendage, which is where stroke risk starts.

From Barron's • Jan. 16, 2026

So far, it is used in only 40% of AFib procedures, but we think it will reach 50%, on its way to 80% as more doctors are trained.

From Barron's • Jan. 16, 2026

Ahlsten: About 10 million patients in the U.S. have AFib, and eight million are at higher risk of a stroke.

From Barron's • Jan. 16, 2026

The trial involved 200 patients who were regular coffee drinkers and had persistent AFib or a related condition known as atrial flutter, along with a history of AFib.

From Science Daily • Nov. 10, 2025

But a new study from UC San Francisco and the University of Adelaide has found the opposite: participants who drank one cup of caffeinated coffee a day had a 39% lower risk of developing AFib.

From Science Daily • Nov. 10, 2025