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.

QUIZZES

HEED THE VOX POPULI, AND TAKE THIS WORD OF THE DAY QUIZ!

Test your memory on these verbal firecrackers from the week of June 29 to July 5!
Question 1 of 7
anchorite
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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.