Definify.com
Webster 1913 Edition
Buoyancy
Buoy′an-cy
,Noun.
pl.
Buoyancies
. 1.
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.
2.
(Physics)
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.
Such are
buoyancies
or displacements of the different classes of her majesty’s ships. Eng. Cyc.
3.
Cheerfulness; vivacity; liveliness; sprightliness; – the opposite of
heaviness
; as,
. buoyancy
of spiritsWebster 1828 Edition
Buoyancy
BUOY'ANCY
,Noun.