A-fib

noun

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\ ˈā-ˈfib

variants: or less commonly AFib or Afib

Definition of A-fib

: atrial fibrillation

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“A-fib.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/A-fib. Accessed 10 May. 2021.

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More Definitions for A-fib

A-fib

noun

\ ˈā-ˈfib

variants: also AFib or Afib

Medical Definition of A-fib

: atrial fibrillation A-fib occurs when the top chambers of the heart, responsible for bringing blood back from the rest of the body, start to flutter. — Forbes, 13 July 2009 Individuals who walked two to three miles per hour … had a 32 percent lower risk of developing AFib, whereas those who walked more than three miles per hour (moderate pace) lowered their risk by 41 percent. — Food & Fitness Advisor, Nov. 2008