extra-systole

extrasystole

[ek-struh-sis-tuh-lee]
noun Pathology.
a premature contraction of the heart, resulting in momentary interruption of the normal heartbeat.
Also called premature beat, premature contraction.


Origin:
1895–1900; < Neo-Latin; see extra-, systole

extrasystolic [ek-struh-sis-tol-ik] , adjective
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American Heritage
Medical Dictionary

extrasystole ex·tra·sys·to·le (ěk'strə-sĭs'tə-lē)
n.
An ectopic, usually premature contraction of the heart, resulting in momentary cardiac arrhythmia. Also called premature systole.

The American Heritage® Stedman's Medical Dictionary
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