extrasystole

noun
ex·tra·sys·to·le | \ˌek-strə-ˈsi-stə-(ˌ)lē \

Definition of extrasystole 

: a premature beat of one of the chambers of the heart that leads to momentary arrhythmia

First Known Use of extrasystole

circa 1900, in the meaning defined above

History and Etymology for extrasystole

New Latin

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The first known use of extrasystole was circa 1900

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extrasystole

noun
ex·tra·sys·to·le | \-ˈsis-tə-(ˌ)lē \

Medical Definition of extrasystole 

: a prematurely occurring beat of one of the chambers of the heart that leads to momentary arrhythmia but leaves the fundamental rhythm unchanged

called also premature beat

Other Words from extrasystole

extrasystolic \-sis-ˈtäl-ik \ adjective

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