commissurotomy
/ˌkɒmɪsjəˈrɒtəmi/ /ˌkɒmɪʃəˈrɒtəmi/Surgery and Medicine
noun
1The procedure of widening the orifice of a valve of the heart, especially the mitral valve, originally by incisions made at the commissures of the orifice and later also by other techniques; an instance of this.
2The procedure of incising or dividing a commissure of the nervous system; an instance of this.
Origin
1940s. From commissure + -o- + -tomy.
- the last (or final) straw
- the last straw
- the last word
- the laugh is on me (or you, him, etc.)
- the Law
- (the law of) diminishing returns
- the Law of Moses
- the law of the jungle
- the Left
- the length and breadth of
- the lesser evil (or the lesser of two evils)
- the Lido
- the lie (lay) of the land
- the life and soul of the party (the life of the party)
- the light of day
- the light of one's life
- the lights are on, but nobody's (or no one's)home
- the likes of
- the Line
- the line of least resistance
- the line (or path) of least resistance
- the lion's den
- the lion's share
- the Litany
- the little woman