Buoyance

Buoyancy. (Used poetically.) (R.) Buoyancy, (boi'an-se,) n. The quality of being buoyant, or floating, or of floating on the surface of water, or in the atmosphere; as, the buoyancy of a cork. "All the winged tribes owe their flight and buoyancy to it." Derham. -Lightne of spirits; vivacity; cheerfulne ; as buoyancy of manner. (Phys.) The weight of a floating body, measured by the volume of fluid displaced.