[ kav-i-tee ]
See synonyms for: cavitycavities on

noun,plural cav·i·ties.
  1. any hollow place; hollow.

  2. Anatomy. a hollow space within the body, an organ, a bone, etc.

  1. a hollow space or a pit in a tooth, most commonly produced by caries. A cavity may be artificially made to support dental restorations.

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

synonym study For cavity

1. See hole.

Other words from cavity

  • cav·i·tied, adjective
  • sub·cav·i·ty, noun, plural sub·cav·i·ties.
  • un·cav·i·tied, adjective

Words Nearby cavity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use cavity in a sentence

British Dictionary definitions for cavity


/ (ˈkævɪtɪ) /

nounplural -ties
  1. a hollow space; hole

  2. dentistry a soft decayed area on a tooth: See caries

  1. any empty or hollow space within the body: the oral cavity

  2. electronics See cavity resonator

Origin of cavity

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

Scientific definitions for cavity


[ kăvĭ-tē ]

  1. A hollow; a hole.

  2. A hollow area within the body.

  1. 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.