- 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.
- 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.
Children enjoying the buoyancy of their inflatable water toy.
- 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 of buoyancy; from buoyant
- 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.
(countable and uncountable, plural buoyancies)