preexcitation

noun

pre·​ex·​ci·​ta·​tion -ˌek-ˌsī-ˈtā-shən, -ˌek-sə- How to pronounce preexcitation (audio)
: premature activation of part or all of the cardiac ventricle by an electrical impulse from the atrium that typically is conducted along an anomalous pathway (as muscle fibers on the heart surface) bypassing the atrioventricular node, that may produce arrhythmias, and that is characteristic of LGL syndrome and Wolff-Parkinson-White syndrome
preexcited adjective

Dictionary Entries Near preexcitation

Cite this Entry

“Preexcitation.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/preexcitation. Accessed 2 Feb. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Fashionable Words

  • dog-sunglasses-scarf
  • Which of these items is named for a deadly weapon?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY