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

This disease is not frequent, while extrasystoles of a functional character are very frequent.

From Project Gutenberg

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

From Project Gutenberg

Note that diastolic pause in which extrasystole occurs is practically equal to two normal diastolic pauses.

From Project Gutenberg

Patients who have occasional extrasystoles will say that all of a sudden the heart turns upside down in the chest.

From Project Gutenberg