atrial fibrillation

noun

A cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

Similar
auricular fibrillationAFa-fibafib
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Meanings

nounatrial fibrillation (countable and uncountable, plural atrial fibrillations)

plural atrial fibrillations

  1. countableuncountablemedicineA cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

    The most common type of irregular heartbeat is atrial fibrillation or AFib. It is estimated that between three and six million people in the United States have AFib.

    2024 February 13, “Understanding Your Heart Rate”, in Emory Healthcare

    Synonyms: auricular fibrillation, AF, a-fib, afib, A-fib

Synonyms & antonyms

nounA cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

Similar
auricular fibrillationAFa-fibafibA-fib
Also see
auricular fibrillation

Translations

Arabic رَجَفَان أُذَيْنِيّ
  • رَجَفَان أُذَيْنِيّ (rajafān ʔuḏayniyy)cardiac arrhythmia
Chinese Mandarin 心房顫動 /心房颤动
  • 心房顫動 /心房颤动 (xīnfáng chàndòng)cardiac arrhythmia
Danish hjerteflimmer, hjerteflimren
  • hjerteflimmercardiac arrhythmia
  • hjerteflimrencardiac arrhythmia
Finnish eteisvärinä, flimmeri
  • eteisvärinäcardiac arrhythmia
  • flimmericardiac arrhythmia
French fibrillation atriale, fibrillation auriculaire
  • fibrillation atrialecardiac arrhythmia
  • fibrillation auriculairecardiac arrhythmia
German Vorhofflimmern
  • Vorhofflimmerncardiac arrhythmia
Greek κολπική μαρμαρυγή
  • κολπική μαρμαρυγή (kolpikí marmarygí)cardiac arrhythmia
Hungarian pitvarfibrilláció
  • pitvarfibrillációcardiac arrhythmia
Italian fibrillazione atriale
  • fibrillazione atrialecardiac arrhythmia
Norwegian atrieflimmer, harehjerte
  • atrieflimmercardiac arrhythmia
  • harehjertecardiac arrhythmia
Polish migotanie przedsionków
  • migotanie przedsionkówcardiac arrhythmia
Spanish fibrilación auricular
  • fibrilación auricularcardiac arrhythmia
Swedish förmaksflimmer
  • förmaksflimmercardiac arrhythmia
Turkish atriyal fibrilasyon
  • atriyal fibrilasyoncardiac arrhythmia
Cite this entry
APA

atrial fibrillation. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/atrial%20fibrillation

MLA

“atrial fibrillation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/atrial%20fibrillation. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “atrial fibrillation,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/atrial%20fibrillation.

Source: atrial fibrillation on Wiktionary, CC BY-SA 4.0.