buoyancy: Meaning and Definition of
buoy•an•cy
Pronunciation: (boi'un-sē, b'yun-sē), [key]
— n.
- the power to float or rise in a fluid; relative lightness.
- the power of supporting a body so that it floats; upward pressure exerted by the fluid in which a body is immersed.
- lightness or resilience of spirit; cheerfulness.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.