cavity

noun cav·i·ty \ˈka-və-tē\

: a hole or space inside something

: a hole formed in a tooth by decay

plural cav·i·ties

Full Definition of CAVITY

: an unfilled space within a mass; especially : a hollowed-out space

: an area of decay in a tooth : caries

See cavity defined for English-language learners

See cavity defined for kids

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

First Known Use: 1541

Synonyms: hole, concavity, dent, depression, dint, hollow, indentation, indenture, pit, recess

Antonyms: bulge, camber, convexity, jut, projection, protrusion, protuberance

CAVITY Defined for Kids

noun cav·i·ty \ˈka-və-tē\

plural cav·i·ties

: a small hole formed in a tooth by decay

: a hollow place <The explosion left a cavity in the ground.>

Medical Dictionary

noun cav·i·ty \ˈkav-ət-ē\

plural cav·i·ties

: an unfilled space within a mass—see pelvic cavity

: an area of decay in a tooth : caries

Next Word in the Dictionary: cavity oscillatorPrevious Word in the Dictionary: cavitomaAll Words Near: cavity

What made you want to look up cavity? Please tell us where you read or heard it (including the quote, if possible).