cavitation

noun

cav·​i·​ta·​tion ˌka-və-ˈtā-shən How to pronounce cavitation (audio)
: the process of cavitating: such as
a
: the formation of partial vacuums in a liquid by a swiftly moving solid body (such as a propeller) or by high-intensity sound waves
also : the pitting and wearing away of solid surfaces (as of metal or concrete) as a result of the collapse of these vacuums in surrounding liquid
b
: the formation of cavities in an organ or tissue especially in disease

Examples of cavitation in a Sentence

Recent Examples on the Web
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Another interesting area of study could be cavitation from boat or submarine propellers, pumps, and some sonar systems. Christopher McFadden, Interesting Engineering, 29 Mar. 2026 HistoSonics uses noninvasive, focused ultrasound to create cavitation bubbles that destroy tumors without dangerously heating surrounding tissue. Harry Goldstein, IEEE Spectrum, 1 Jan. 2026 The actress that the video was taken after her third attempt at addressing a root cavitation. Wesley Stenzel, Entertainment Weekly, 26 Nov. 2025 Hydrofoils, according to the team, aren't suitable for this gig, since the low-pressure zone caused by these underwater wings causes water to boil into vapor at high speeds in a process called cavitation, causing dangerous levels of drag and instability at speeds over about 60 mph (~100 km/h). New Atlas, 4 June 2025 See All Example Sentences for cavitation

Word History

Etymology

cavity + -ation

First Known Use

1895, in the meaning defined above

Time Traveler
The first known use of cavitation was in 1895

Browse Nearby Words

Cite this Entry

“Cavitation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cavitation. Accessed 1 Apr. 2026.

Kids Definition

cavitation

noun
cav·​i·​ta·​tion ˌkav-ə-ˈtā-shən How to pronounce cavitation (audio)
: the formation of partial vacuums in a liquid by a swiftly moving solid body (as a propeller) or by high-frequency sound waves

Medical Definition

cavitation

noun
cav·​i·​ta·​tion ˌkav-ə-ˈtā-shən How to pronounce cavitation (audio)
1
: the process of cavitating
especially : the formation of cavities in an organ or tissue especially in disease
2
: a cavity formed by cavitation
cavitate verb
cavitated; cavitating

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