noun
arrhythmia
ay-RIHTH-mih-uh
noun
1
An irregular or abnormal heartbeat, where the heart beats too fast, too slow, or unevenly.
"Her doctor picked up a mild arrhythmia during the routine check-up."
"Too much caffeine can trigger an arrhythmia in some people."
How to Use Arrhythmia
Learner’s notesIn plain EnglishA heartbeat that isn't keeping steady time — too fast, too slow, or irregular.
Common mistake
Arrhythmia describes the irregular rhythm itself, not any one specific heart condition — there are many types.
Common pairings
cardiac arrhythmia
suffer from arrhythmia
irregular arrhythmia
Word Forms
arrhythmias plural
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Etymology
From Greek arrhythmia, "lack of rhythm" — built from a- ("without") plus rhythmos ("rhythm").