buoyancy

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English[edit]

Etymology[edit]

buoyant +‎ -cy or buoy +‎ -ancy.

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Pronunciation[edit]

Noun[edit]

buoyancy (countable and uncountable, plural buoyancies)

  1. (physics) The upward force on a body immersed or partly immersed in a fluid.
  2. The ability of an object to stay afloat in a fluid.
  3. (by extension) Resilience or cheerfulness.

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