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buoyancy
The definition of buoyancy refers to whether something can float in water or air, or the power of water or other liquids to keep water afloat, or an optimistic disposition.
(adjective)- An example of buoyancy is when a boat floats in water.
- An example of buoyancy is when salt water has the ability to help things float.
- An example of buoyancy is a cheerful person who is grateful for her job and who is generally happy and optimistic.
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See buoyancy in Webster's New World College Dictionary
noun
- the ability or tendency to float or rise in liquid or air
- the power to keep something afloat; upward pressure on a floating object
- lightness or resilience of spirit
Origin: < buoyant
See buoyancy in American Heritage Dictionary 4
noun
- a. The tendency or capacity to remain afloat in a liquid or rise in air or gas.b. The upward force that a fluid exerts on an object less dense than itself.
- Ability to recover quickly from setbacks; resilience.
- Lightness of spirit; cheerfulness.
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