com·​mis·​sur·​ot·​o·​my ˌkäm-ə-ˌshu̇(ə)r-ˈät-ə-mē, -shə-ˈrät- How to pronounce commissurotomy (audio)
plural commissurotomies
: the operation of cutting through a band of muscle or nerve fibers
specifically : separation of the flaps of a mitral valve to relieve mitral stenosis : valvulotomy

Dictionary Entries Near commissurotomy

Cite this Entry

“Commissurotomy.” Medical Dictionary, Merriam-Webster, Accessed 30 Nov. 2023.

Love words? Need even more definitions?

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