[ kav-i-tee ]
/ ˈkæv ɪ ti /
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See synonyms for: cavity / cavities on Thesaurus.com

noun, plural cav·i·ties.

any hollow place; hollow.
Anatomy. a hollow space within the body, an organ, a bone, etc.
a hollow space or a pit in a tooth, most commonly produced by caries. A cavity may be artificially made to support dental restorations.



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Origin of cavity

First recorded in 1535–45; from Middle French cavite from Late Latin cavitās “hollowness,” equivalent to Latin cav(us) “hollow” + -itās -ity
1. See hole.
cav·i·tied, adjectivesub·cav·i·ty, noun, plural sub·cav·i·ties.un·cav·i·tied, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for cavity

/ (ˈkævɪtɪ) /

noun plural -ties

a hollow space; hole
dentistry a soft decayed area on a toothSee caries
any empty or hollow space within the bodythe oral cavity
electronics See cavity resonator
C16: from French cavité, from Late Latin cavitās, from Latin cavus hollow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for cavity

[ kăvĭ-tē ]


A hollow area within the body, such as a sinus cavity.
A pitted area in a tooth caused by caries.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for cavity

[ kăvĭ-tē ]

A hollow; a hole.
A hollow area within the body.
A pitted area in a tooth caused by caries.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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