buoyancyPronunciation: /ˈbɔɪənsi/Translate buoyancy | into German | into Italian Definition of buoyancy noun [mass noun] 1the ability or tendency of something to float in water or other fluid. the power of a liquid to keep something afloat: she plunged into the sea, grateful for the buoyancy of the salt water 2a cheerful and optimistic attitude or disposition. 3a high level of activity in an economy or stock market:there is renewed buoyancy in the demand for steelbuoyancy in other Oxford dictionaries Definition of buoyancy in the US English dictionary
