commissurotomy
noun
com·mis·sur·ot·o·my
ˌkäm-ə-ˌshu̇(ə)r-ˈät-ə-mē, -shə-ˈrät-
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
Cite this Entry
“Commissurotomy.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/commissurotomy. Accessed 8 Jul. 2026.
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