buoyancy
/ˈbɔɪ.ən.si/ noun C1- The upward force on a body immersed or partly immersed in a fluid.
- The ability of an object to stay afloat in a fluid.
- Resilience or cheerfulness.
Plural buoyancies
From the library
He had spent four decades calculating load-bearing capacities and structural tolerances, yet the sheer buoyancy of this maritime leviathan always fascinated him.
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