extrasystole

[ ek-struh-sis-tuh-lee ]
/ ˌɛk strəˈsɪs tə li /

noun Pathology.

a premature contraction of the heart, resulting in momentary interruption of the normal heartbeat.
Also called premature beat, premature contraction.

Origin of extrasystole

From New Latin, dating back to 1895–1900; see origin at extra-, systole

OTHER WORDS FROM extrasystole

ex·tra·sys·tol·ic [ek-struh-sis-tol-ik] /ˌɛk strə sɪsˈtɒl ɪk/, adjective

Example sentences from the Web for extrasystole

Medical definitions for extrasystole

extrasystole
[ ĕk′strə-sĭstə-lē ]

n.

An ectopic, usually premature contraction of one of the chambers of the heart, resulting in momentary cardiac arrhythmia. premature systole