cavity

noun
cav·​i·​ty | \ ˈka-və-tē How to pronounce cavity (audio) \
plural cavities

Definition of cavity

1 : an unfilled space within a mass especially : a hollowed-out space
2 : an area of decay in a tooth : caries

Keep scrolling for more

Examples of cavity in a Sentence

Some birds nest in tree cavities. I had two cavities filled at the dentist's.

Recent Examples on the Web

The fertilised females lay their eggs in trays fitted with cavities shaped like honeycomb and slathered in molasses. The Economist, "Beetles and flies are becoming part of the agricultural food chain," 4 July 2019 So an acid is going to make that cavity or that hole in the tooth get worse, which leads to needing more root canals and eventually extractions. Kristen Jordan Shamus, Detroit Free Press, "Charcoal toothpaste can remove more than stains from your teeth, dentist warns," 24 June 2019 From the piece: At age 10, Koepka fractured his nose and sinus cavity when his babysitter’s car was hit at an intersection. Conor Orr, SI.com, "Which Athlete From Another Sport Would Fit Best in the NFL?," 21 June 2019 Speaking of wall cavities, Carrillo's company specializes in installing small panels with a door into your wall. Blair Donovan, Country Living, "How to Get Rid of Mice: The Ultimate Guide to a Rodent-Free Home," 28 Mar. 2019 This sticky film can accumulate on your teeth and lead to issues like cavities and sore, puffy gums. Korin Miller, SELF, "What Is a Water Flosser and Should You Be Using One?," 26 Feb. 2019 Washing the Exterior: Clean the outside of the air fryer with a moist cloth, as well as the walls of the interior cavity that hold the fryer basket. Betty Gold, Good Housekeeping, "The 5 Best Air Fryers for Making Crispy Comfort Foods So Much Healthier," 20 Nov. 2018 To determine what would happen, Yale scientists had three microwave generators irradiate an atom within a 3D cavity made of aluminum. David Grossman, Popular Mechanics, "Scientists Can Save Schrödinger's Cat By Predicting Quantum Jumps," 7 June 2019 In rivers and many larger reservoirs, such cavities are abundant or at least available. Shannon Tompkins, ExpressNews.com, "Fish in a barrel, or how to spawn cats in a small lake," 6 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cavity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of cavity

1541, in the meaning defined at sense 1

History and Etymology for cavity

borrowed from Middle French & Late Latin; Middle French cavité, borrowed from Late Latin cavitāt-, cavitās, from Latin cavus "hollow, concave" + -itāt-, -itās -ity — more at hole entry 1

Keep scrolling for more

Learn More about cavity

Statistics for cavity

Last Updated

14 Jul 2019

Look-up Popularity

Time Traveler for cavity

The first known use of cavity was in 1541

See more words from the same year

Keep scrolling for more

More Definitions for cavity

cavity

noun

English Language Learners Definition of cavity

: a hole or space inside something
: a hole formed in a tooth by decay

cavity

noun
cav·​i·​ty | \ ˈka-və-tē How to pronounce cavity (audio) \
plural cavities

Kids Definition of cavity

1 : a small hole formed in a tooth by decay
2 : a hollow place The explosion left a cavity in the ground.

cavity

noun
cav·​i·​ty | \ ˈkav-ət-ē How to pronounce cavity (audio) \
plural cavities

Medical Definition of cavity

1 : an unfilled space within a mass
2 : an area of decay in a tooth : caries

Keep scrolling for more

More from Merriam-Webster on cavity

Rhyming Dictionary: Words that rhyme with cavity

Thesaurus: All synonyms and antonyms for cavity

Spanish Central: Translation of cavity

Nglish: Translation of cavity for Spanish Speakers

Britannica English: Translation of cavity for Arabic Speakers

Britannica.com: Encyclopedia article about cavity

Comments on cavity

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

WORD OF THE DAY

food or victuals

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!