The Collaborative International Dictionary
Buoyancy \Buoy"an*cy\, n.; pl. Buoyancies.
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.
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(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. Cheerfulness; vivacity; liveliness; sprightliness; -- the opposite of heaviness; as, buoyancy of spirits.
Wiktionary
n. (plural of buoyancy English)
Usage examples of "buoyancies".
These initial difficulties would be quickly overcome by designers who, even if they were forced to work with Stone Age tools, could handle with ease the mathematics of metacenters, buoyancies, and advanced hydrodynamics.
If weightless inertia caused problems in orbit, what about the almost unpredictable buoyancies of submerged materials?