buoy·​an·​cy | \ ˈbȯi-ən(t)-sē How to pronounce buoyancy (audio) , ˈbü-yən(t)- \

Definition of buoyancy

1a : the tendency of a body to float or to rise when submerged in a fluid testing an object's buoyancy
b chemistry : the power of a fluid to exert an upward force on a body placed in it the buoyancy of water also : the upward force exerted
2 : the ability to recover quickly from depression or discouragement : resilience his buoyancy of spirit
3 : the property of maintaining a satisfactorily high level (as of prices or economic activity) betting that the economy will maintain its buoyancy

Examples of buoyancy in a Sentence

the natural buoyancy of cork The swimmer is supported by the water's buoyancy. We hope that the economy will maintain its buoyancy.
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Recent Examples on the Web Their current flotation device has a buoyancy capability to float up to 8,360 pounds. Savannah Mehrtens, Houston Chronicle, "Father and son company introduce innovative flotation device for flood adaption," 15 Nov. 2019 Muti brought a spirit of whimsy and considerable rhythmic buoyancy to the second movement scherzo, the orchestra’s seemingly nonchalant virtuosity evident in the brass’s power and precision and the ensemble’s grandeur en masse. Howard Reich, chicagotribune.com, "CSO review: Riccardo Muti opens his 10th season with vivid Shostakovich," 20 Sep. 2019 But with the strong campaign of 30-something Pete Buttgieg and the buoyancy that millennials have added to the Sanders and Warren campaigns, millennials are at least in the water-cooler conversation. NBC News, "X doesn't mark the spot: As Millennials and Baby Boomers feud, a generation is left out," 24 Nov. 2019 Rather, the damage to hearts and minds is somehow inflicted with a terrible buoyancy of spirit, and at an unbearable cost—literally so in the case of Nora Fanshaw (Laura Dern), the top-rate lawyer who represents Nicole in the split. Anthony Lane, The New Yorker, "End Times in “Terminator: Dark Fate” and “Marriage Story”," 1 Nov. 2019 There was no doubting the scherzo’s rhythmic buoyancy, Masur and friends conjuring its high spirits with vigor and clarity. Howard Reich, chicagotribune.com, "Review: Ken-David Masur starts a promising new chapter with Civic Orchestra," 22 Oct. 2019 Haynes grew up amid the suburban buoyancy and abundance of Encino, California, just a few miles from Hollywood, during one of the industry’s most vital periods. John Lahr, The New Yorker, "Todd Haynes Rewrites the Hollywood Playbook," 4 Nov. 2019 According to the American Pregnancy Association, giving birth in water is thought to soothe labor pains, reduce stress hormone levels, and provide buoyancy for an easier delivery. Christina Oehler, Health.com, "Teresa Palmer Shares a Raw Look at Her Water Birth Now That She's 6 Months Postpartum," 23 Oct. 2019 Most of its bulk consists of a highly specialized syntactic foam—made of tiny ceramic spheres suspended in polymer resin—the only material able to provide buoyancy while remaining uncrushable. Susan Casey, Outside Online, "One Man's Wild Quest to Reach the Bottom of Every Ocean," 22 Oct. 2019

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

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First Known Use of buoyancy

1713, in the meaning defined at sense 1a

History and Etymology for buoyancy

see buoy entry 1

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Time Traveler for buoyancy

Time Traveler

The first known use of buoyancy was in 1713

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Statistics for buoyancy

Last Updated

10 Jan 2020

Cite this Entry

“Buoyancy.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/buoyancy?pronunciation&lang=en_us&dir=b&file=buoyan03. Accessed 26 January 2020.

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More Definitions for buoyancy


How to pronounce buoyancy (audio)

English Language Learners Definition of buoyancy

: the ability of an object to float in water or air
: the power of a liquid to make someone or something float
: the ability of someone or something to continue to be happy, strong, etc., through difficult times


buoy·​an·​cy | \ ˈbȯi-ən-sē How to pronounce buoyancy (audio) , ˈbü-yən- \

Kids Definition of buoyancy

1 : the power of rising and floating (as on water or in air) Cork has buoyancy in water.
2 : the power of a liquid to hold up a floating body Seawater has buoyancy.

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Comments on buoyancy

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to express in a more acceptable way

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