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

The agency said at the time that companies should provide more buoyancy, such as watertight compartments, to ensure boats remained upright and afloat in the event of flooding, according to the lawsuit. Kris Maher, WSJ, "Family of Duck Boat Victims Sues Tour Operator," 30 July 2018 Today, wallpaper represents the harmonious union between timeless design and youthful innovation, depth and buoyancy. Hadley Mendelsohn, House Beautiful, "Interior Designers Predict the Next Major Wallpaper Trends," 12 Mar. 2019 But rising interest rates, a pricey housing market and stock market volatility threaten that consumer buoyancy. Sharon Nunn, WSJ, "Consumers Poised to Pick Up Spending Heading Into Holiday Season," 9 Nov. 2018 The shipbuilder, Navantia, immediately suspended construction of the subs and called in U.S. submarine builder Electric Boat to solve the buoyancy issue. Kyle Mizokami, Popular Mechanics, "Spain’s Newest Submarine is Too Big For Port," 19 July 2018 Though growing global trade tensions are directly impacting shipping, these preferreds offer very high yields for investors who believe in the long-term underlying buoyancy of a shipping company. Eric Uhlfelder, WSJ, "Preferred Stocks Beckon If Interest Rates Behave," 9 Dec. 2018 The color evokes vitality and buoyancy; the marine invertebrate get its vibrant tone from the tiny algae living on its surface. Hannah Morrill, ELLE Decor, "Pantone Just Released Their Color of the Year for 2019," 5 Dec. 2018 The Gear & Cost Gear is minimal, as the Channel Swimming Association forbids the use of a wetsuit or any type of buoyancy or thermal aid. Jen Murphy, WSJ, "The Next Big Swim After the English Channel," 13 Oct. 2018 Throughout the symphony, the music making veered with complete naturalness between Mitteleuropean buoyancy and darker tones suggesting Weltschmerz. David Mermelstein, WSJ, "The Czech Philharmonic’s Global Ambitions," 31 Oct. 2018

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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Dictionary Entries near buoyancy





buoyancy tank


buoyant force

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Time Traveler for buoyancy

The first known use of buoyancy was in 1713

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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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More from Merriam-Webster on buoyancy

Spanish Central: Translation of buoyancy

Nglish: Translation of buoyancy for Spanish Speakers

Britannica English: Translation of buoyancy for Arabic Speakers

Britannica.com: Encyclopedia article about buoyancy

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