Buoyancy

Pronunciation: /ˈbɔɪənsiː/

Buoyancy (noun)

  1. The upward force that helps an object stay on the surface of a liquid or rise through it.
  2. A material’s tendency to resist sinking in a fluid, based on how it interacts with the fluid’s pressure.

Examples

  • The buoyancy of the boat keeps it from sinking.
  • Higher buoyancy helps an object rise in water.