cavity

noun

cav·​i·​ty ˈka-və-tē How to pronounce cavity (audio)
plural cavities
1
: an unfilled space within a mass
especially : a hollowed-out space
2
: an area of decay in a tooth : caries

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 Does a natural toothpaste provide adequate cavity protection? Isabella Ubaldi, Verywell Health, 19 Apr. 2024 Without insurance, families and children may not get teeth cleanings, oral exams, cavity fillings and surgeries. Binghui Huang, The Indianapolis Star, 18 Apr. 2024 Swarm prevention is a top priority for beekeepers who manage boxes of honeybees as a hobby or a profession, but our county contains unmanaged colonies that take advantage of a hole in the attic, our water meter box, downed tree trunk cavity, or other places deemed worthy. Leah Taylor, San Diego Union-Tribune, 13 Apr. 2024 Thirty large mammal experts—including equine veterinary dentists, anesthesiologists, and veterinarians—were called in from across the U.S., South Africa, and India to assist in the male bull elephant's operation, which was the equivalent of a human cavity filling. Charlotte Phillipp, Peoplemag, 4 Apr. 2024 The portable clinic is part of a cavity prevention program developed by NYU College of Dentistry and is being rolled out in Concord and two other New Hampshire districts. Michael Casey, The Christian Science Monitor, 4 Apr. 2024 Nearly 50 steps were identified and, along the stairs, two large cavities were cut into the rock, the study said. Irene Wright, Miami Herald, 1 Apr. 2024 That could be tricky, because RF cavities typically don’t work well in magnetic fields. Byadrian Cho, science.org, 28 Mar. 2024 Participants in the last arm of the study, who had CAR-T cells infused into the spinal fluid as well as the cavity around their brain tumors, had an overall survival of about 10½ months. Brenda Goodman, CNN, 13 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cavity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

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

First Known Use

1541, in the meaning defined at sense 1

Time Traveler
The first known use of cavity was in 1541

Dictionary Entries Near cavity

Cite this Entry

“Cavity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cavity. Accessed 24 Apr. 2024.

Kids Definition

cavity

noun
cav·​i·​ty ˈkav-ət-ē How to pronounce cavity (audio)
plural cavities
1
: a hollow place
especially : an unfilled bodily space
lung cavity
2
: a hole hollowed out in a tooth by decay

Medical Definition

cavity

noun
cav·​i·​ty ˈkav-ət-ē How to pronounce cavity (audio)
plural cavities
1
: an unfilled space within a mass
2
: an area of decay in a tooth : caries

More from Merriam-Webster on cavity

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