extrasystole

[ ek-struh-sis-tuh-lee ]

noun

, Pathology.

1. a premature contraction of the heart, resulting in momentary interruption of the normal heartbeat.

Other Words From

• ex·tra·sys·tol·ic [ek-str, uh, -sis-, tol, -ik], adjective

Word History and Origins

Origin of extrasystole¹

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

Example Sentences

The extrasystole may have its origin in either the auricle or the ventricle.

From Project Gutenberg

Provided there is no evidence of gross myocardial lesion, the extrasystole itself is of no great significance.

From Project Gutenberg

If there is auricular extrasystole it can not usually be recognized except by graphic methods.

From Project Gutenberg

Whenever there is a dropped beat or an intermittent pulse one may be sure that it is the result of an extrasystole.

From Project Gutenberg

The ventricular extrasystole on the contrary is commonly seen and readily recognized.

From Project Gutenberg