Noun
The property of floating on the surface of a liquid, or in a fluid, as in the atmosphere; specific lightness, which is inversely as the weight compared with that of an equal volume of water.
The upward pressure exerted upon a floating body by a fluid, which is equal to the weight of the body; hence, also, the weight of a floating body, as measured by the volume of fluid displaced.
Cheerfulness; vivacity; liveliness; sprightliness; -- the opposite of heaviness; as, buoyancy of spirits.
Source: Webster's dictionaryI admired his buoyancy and persistent good humor Source: Internet
After applying corrections for the finite amplitude of swing, the buoyancy of the bob, the barometric pressure and altitude, and temperature, he obtained a value of 39.13929 inches for the seconds pendulum at London, in vacuum, at sea level, at 62 °F. Source: Internet
Aerodynamic lift requires relative motion of the fluid which distinguishes it from aerostatic lift or buoyancy lift as used by balloons, blimps, and dirigibles. Source: Internet
An extra low-pressure feed from the regulator first-stage lets the lifejacket be controlled as a buoyancy aid. Source: Internet
Archimedes' principle of buoyancy is given in the work, stated as follows: Any body wholly or partially immersed in a fluid experiences an upthrust equal to, but opposite in sense to, the weight of the fluid displaced. Source: Internet
A small child has negative buoyancy and either sinks rapidly or must make a sustained effort to stay near the surface. Source: Internet