buoyancy

noun

Synonyms of buoyancy
1
a
: 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.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Holland holds onto his buoyancy even as his character battles the blues. Amy Nicholson, Los Angeles Times, 30 July 2026 This gave rise to a series of metaphors which portray financial strain as a physical burden, felt by weight, pressure, motion and buoyancy. Richard Yanowitch, Mercury News, 29 July 2026 Water creates natural resistance in every direction, so even simple movements engage your muscles while the water’s buoyancy reduces stress on your joints. Patricia Neligan, AJC.com, 27 July 2026 Instead, the robot uses conventional buoyancy while its four legs provide propulsion and maneuverability. Neetika Walter, Interesting Engineering, 24 July 2026 See All Example Sentences for buoyancy

Word History

Etymology

see buoy entry 1

First Known Use

1713, in the meaning defined at sense 1a

Time Traveler
The first known use of buoyancy was in 1713

Browse Nearby Words

Cite this Entry

“Buoyancy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/buoyancy. Accessed 8 Aug. 2026.

Kids Definition

buoyancy

noun
1
: the tendency of a body to float or to rise when in a fluid
the buoyancy of a cork in water
2
: the power of a fluid to put an upward force on a body placed in it
the buoyancy of seawater
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