plural cavities
1
: an unfilled space within a mass
especially
: a hollowed-out space
2
: an area of decay in a tooth : caries
Synonyms
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
Research shows that carbonated water stimulates the oral cavity, which can improve your overall swallow function.4
One study asked 16 participants to swallow various liquids, including carbonated, citric acid, and still water, examining the differences in their swallows.
—
Chelsea Rae Bourgeois, Rdn, Ld, Health, 1 July 2024
Baseline estimates presented at a conference last month blame alcohol for over a third of esophageal cancers (mostly squamous cell carcinoma) and oral cavity and pharynx cancers, and a quarter of liver cancer cases.
—Isabella Cueto and J. Emory Parker, STAT, 27 June 2024
The spray and mouthwash are marketed as promoting oral health and preventing cavities and gum disease.
—Brianna Taylor, Sacramento Bee, 18 June 2024
Some, still in the process of formation, draw material in, while more mature stars can grow massive and become so fiercely bright that their light dissolves the material around them, creating huge cavities.
—Phil Plait, Scientific American, 14 June 2024
See all Example Sentences for cavity 
Chelsea Rae Bourgeois, Rdn, Ld, Health, 1 July 2024
Baseline estimates presented at a conference last month blame alcohol for over a third of esophageal cancers (mostly squamous cell carcinoma) and oral cavity and pharynx cancers, and a quarter of liver cancer cases.
—Isabella Cueto and J. Emory Parker, STAT, 27 June 2024
The spray and mouthwash are marketed as promoting oral health and preventing cavities and gum disease.
—Brianna Taylor, Sacramento Bee, 18 June 2024
Some, still in the process of formation, draw material in, while more mature stars can grow massive and become so fiercely bright that their light dissolves the material around them, creating huge cavities.
—Phil Plait, Scientific American, 14 June 2024
See all Example Sentences for cavity
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.
Dictionary Entries Near cavity
Cite this Entry
“Cavity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cavity. Accessed 7 Jul. 2024.
Copy CitationKids Definition
cavity
noun
cav·i·ty
ˈkav-ət-ē 
plural cavities
1
: a hollow place
especially
: an unfilled bodily space
lung cavity
2
: a hole hollowed out in a tooth by decay
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