buoyancy

noun
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 boat features three air chambers for extra buoyancy, and an I-Beam floor construction adds rigidity. Kyle Mizokami, Popular Mechanics, "The Navy's Next Mission: Detect Invisible Submarines From the Sky," 19 Nov. 2020 The creature, researchers also believe, could have used its neutral buoyancy to stalk the seabed in search of its next meal. Amy Woodyatt, CNN, "Newly discovered Triassic lizard could float underwater to pick off prey," 28 Oct. 2020 The reptile was well suited for underwater hunting: neutral buoyancy should also have enabled it to walk on the seabed searching for slow-moving prey. Amy Woodyatt, CNN, "Newly discovered Triassic lizard could float underwater to pick off prey," 28 Oct. 2020 The recommendations required duck boat operators to provide reserve buoyancy for their vessels, so the boats will have a backup method of flotation in the event of flooding. Dana Brandt, Milwaukee Journal Sentinel, "For popular duck boats in the Wisconsin Dells, spot-checks show some potential safety issues," 26 Oct. 2020 The boat features three air chambers for extra buoyancy, and an I-Beam floor construction adds rigidity. Kyle Mizokami, Popular Mechanics, "Japan's Jumbo New Submarine Runs on Lithium-Ion Batteries," 21 Oct. 2020 The oil in a shark's liver helps regulate its buoyancy in the water. Adrianna Rodriguez, USA TODAY, "Sharks are killed to make effective vaccines. More may die as scientists develop one for COVID-19, conservationists warn," 15 Oct. 2020 His plan relied on the natural buoyancy of gases to pull air out of debating chambers and draw fresh air in, and even used wet canvas to filter out pollution. Veronique Greenwood, Wired, "Schools (and Children) Need a Fresh Air Fix," 14 Oct. 2020 Its recent buoyancy arises from relatively robust GDP growth through early this year and its status as the world's reserve currency. Shawn Tully, Fortune, "The biggest economic threat facing the next administration: A weak dollar," 11 Oct. 2020

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

23 Nov 2020

Cite this Entry

“Buoyancy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/buoyancy. Accessed 26 Nov. 2020.

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More Definitions for buoyancy

buoyancy

noun
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

buoyancy

noun
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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