[ ek-struh-sis-tuh-lee ]

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

Origin of extrasystole

From New Latin, dating back to 1895–1900; see origin at extra-, systole
  • Also called premature beat, premature contraction.

Other words from extrasystole

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

Words Nearby extrasystole

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use extrasystole in a sentence