Definition of buoyancy in English:

buoyancy

Syllabification: buoy·an·cy
Pronunciation: /ˈboi-ənsē, ˈbo͞oyənsē
 
/

noun

  • 1The ability or tendency to float in water or air or some other fluid.
    More example sentences
    • My lungs then re-expand, my wetsuit buoyancy returns and I float to the surface.
    • Built into each wheel unit was a flotation tank with sufficient buoyancy to float the unit.
    • The boats took on more water than they had buoyancy.
  • 1.1The power of a liquid to keep something afloat.
    More example sentences
    • Water's buoyancy makes a swimmer feel weightless and reduces stress on joints in the spine, hips and knees.
    • Raziel, on the other hand, begins the game in the spectral realm, a plane where lost souls gather, objects can't be moved and water has no buoyancy.
    • And because of its buoyancy, water is also used in rehabilitation programs.
  • 2An optimistic and cheerful disposition: the happiness and buoyancy of his nature
    More example sentences
    • At his Balzacian best, he radiated warmth, buoyancy, optimism and hope; but in his more Dostoyevskian mode, he was consumed by doubt, loneliness, envy and disappointment.
    • Where a month ago there was optimism and buoyancy, there is hopelessness.
    • Discussions became political after next to no time (and all the other Kiwis were National or centre-right) so there was a bit of hope and buoyancy that National and Dr Brash will win this year.
  • 3A high level of activity in an economy or stock market: there is renewed buoyancy in the demand for steel
    More example sentences
    • Much of the Korean economy's buoyancy can be traced to the effects of banking reforms since Korea's 1997 financial crisis.
    • After a long time, the revived projects are exceeding the value of projects shelved, showing overall buoyancy in the economy and investment.
    • The health of a country's economy should not be judged by the buoyancy of its stock market or its currency's strength.

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