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English definition of “cavity”

cavity

noun [C] uk   /ˈkæv.ɪ.ti/ us    /-ə.t̬i/

cavity noun [C] (HOLE)

a hole, or an empty space between two surfaces: The gold was hidden in a secret cavity.

cavity noun [C] (TOOTH)

a hole in a tooth

cavity noun [C] (IN THE BODY)

specialized medical a hollow space in an organ or body part: the upper nasal cavity
(Definition of cavity from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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