an operation on the throat to treat severe snoring and sleep apnea. Soft tissue on the back of the throat and soft palate (the uvula) is removed. The tonsils and possibly other excess tissue may also be removed, if present.
(don't) bother with the pronunciation - say UPPP or U-triple P instead!). The operation that cuts away part of the soft palate and side walls of the pharynx (or throat) in an attempt to reduce snoring volumes. Not very effective and extremely painful.
'Uvulo palatopharyngoplasty (also known by the abbreviation UPPP''') is a surgical procedure used to remove tissue in the throat.