noun

arrhythmia

arrhythmia, irregular heartbeat

He was diagnosed with a cardiac arrhythmia.

He was diagnosed with a cardiac arrhythmia.

((a/an)) arrhythmia a medical condition He suffers from a cardiac arrhythmia.

Synonyms: irregular heartbeat, palpitation

From Greek 'a-' (not) + 'rhythmos' (rhythm), meaning 'not rhythm'.

Think of 'a-' as 'absence of' and 'rhythm' as the beat. Absence of rhythm.

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