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 27 May. 2024.

Love words? Need even more definitions?

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