9 Grammatical Pitfalls


[kav-i-tee] /ˈkæv ɪ ti/
noun, plural cavities.
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.
Origin of cavity
1535-45; < Middle French cavite < Late Latin cavitās hollowness, equivalent to Latin cav(us) hollow + -itās -ity
Related forms
cavitied, adjective
subcavity, noun, plural subcavities.
uncavitied, adjective
1. See hole. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for cavity
  • They then filled the spinal cavity around the injured area with blocks of hydrogel laced with stem cells from rat bone marrow.
  • X-rays may be taken yearly to detect possible cavity development in high risk areas of the mouth.
  • From there, the surgeon cuts a hole in the stomach wall to enter the abdominal cavity and perform the operation.
  • Mated pairs migrate to and breed in the northern parts of their range and build nests on the ground or in a protected cavity.
  • The evacuated cavity is left empty, filling with cerebrospinal fluid in a day or so.
  • The study is about what was inside the dinosaur's body cavity when it died.
  • Snug cavity protects laptop from unnecessary rattle.
  • Secondary peritonitis is an inflammation of the peritoneum, the tissue lining the abdominal cavity.
  • The result was remarkable: a material consisting of billions of tiny magnets, each rotating in its own cavity.
  • In all other mammals, the lungs are surrounded by two layers of a thin membrane called the pleural cavity.
British Dictionary definitions for cavity


noun (pl) -ties
a hollow space; hole
(dentistry) a soft decayed area on a tooth See caries
any empty or hollow space within the body: the oral cavity
(electronics) See cavity resonator
Word Origin
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
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Word Origin and History for cavity

1540s, from Middle French cavité (13c.), from Late Latin cavitatem (nominative cavitas) "hollowness," from Latin cavus "hollow" (see cave (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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cavity in Medicine

cavity cav·i·ty (kāv'ĭ-tē)

  1. A hollow area within the body, such as a sinus cavity.

  2. 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.
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cavity in Science
  1. A hollow; a hole.

  2. A hollow area within the body.

  3. A pitted area in a tooth caused by caries.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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