valvulotomy
noun
val·vu·lot·o·my
| \ ˌval-vyə-ˈlät-ə-mē
\
\
plural valvulotomies
Medical Definition of valvulotomy
: surgical incision of a valve
specifically
: the operation of enlarging a narrowed heart valve by cutting through the mitral commissures with a knife or by a finger thrust to relieve the symptoms of mitral stenosis