Caldwell-Luc operation

noun

Cald·​well-Luc operation ˈkȯld-ˌwel-ˈlük-, ˈkäld-, -ˈlᵫ̅k- 

variants or Caldwell-Luc procedure

: a surgical procedure used especially for clearing a blocked or infected maxillary sinus that involves entering the sinus through the mouth by way of an incision into the canine fossa above a canine tooth, cleaning the sinus, and creating a new and enlarged opening for drainage through the nose