Main Entry: cav·i·ty

Pronunciation: \ˈka-və-tē\

Function: noun

Inflected Form(s): plural cav·i·ties

Etymology: Middle French cavité, from Late Latin cavitas, from Latin cavus

Date: 1541

1 : an unfilled space within a mass; especially : a hollowed-out space
2 : an area of decay in a tooth : caries