extrasystole

ex·tra·sys·to·le

[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

ex·tra·sys·tol·ic [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
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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00:10
Extrasystole is always a great word to know.
So is flibbertigibbet. Does it mean:
the offspring of a zebra and a donkey.
a chattering or flighty, light-headed person.
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