buoyancy

== English == === Etymology === From buoyant +‎ -cy or buoy +‎ -ancy. === Pronunciation === (UK, US) IPA(key): /ˈbɔɪ.ən.si/ === Noun === buoyancy (countable and uncountable, plural buoyancies) (physics) The upward force on a body immersed or partly immersed in a fluid. The ability of an object to stay afloat in a fluid. (figuratively, by extension) Resilience or cheerfulness. ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === See also === Archimedes' principle