# fibrillation

> English word · Noun · IPA /ˌfɪbɹɪˈleɪʃən/ · frequency rank #36,142

## Definitions
1. The rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart.

## Etymology
From fibrilla + -ation.

## Common misspellings (17)
`fbirillation`, `ffibrillation`, `fibbrillation`, `fibirllation`, `fibrilaltion`, `fibrilation`, `fibrillaiton`, `fibrillasion`, `fibrillatino`, `fibrillationn`, `fibrillatoin`, `fibrillattion`, `fibrilltaion`, `fibrlilation`, `fibrrillation`, `firbillation`, `ifbrillation`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fibrillation