noun ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   An irregular heartbeat; a lack of a regular pulse. countable, uncountable
2. 2
   an abnormal rate of muscle contractions in the heart wordnet
3. 3
   A disease entity involving such beats, such as atrial fibrillation, ventricular tachycardia, AV nodal reentrant tachycardia, or others. countable, uncountable

Synonyms

All synonyms

anginaapoplexyarteriosclerosisasequenceatherosclerosisbeat

Example

More examples

"My family has a history of cardiac arrhythmia."

Etymology

Borrowed from New Latin arrhythmia, from Ancient Greek ἀρρυθμία (arrhuthmía), equivalent to a- + rhythm + -ia.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.