flotation

1. A state of floating, or being afloat. (countable, uncountable)
2. The ability (as of a tire or snowshoes) to stay on the surface of soft ground or snow. (countable, uncountable)
3. A process of separating minerals by agitating a mixture with water and detergents etc; selected substances being carried to the surface in air bubbles. (countable, uncountable)

الجمع flotations