A Flotation, Flotation

1. A state of floating, or being afloat.
2. The ability (as of a tire or snowshoes) to stay on the surface of soft ground or snow. https://en.wikipedia.org/wiki/Froth_flotation
3. (mining, chemical engineering) A process of separating minerals by agitating a mixture with water and detergents etc; selected substances being carried to the surface in air bubbles.
4. (Britain, finance) The launching onto the market of a tranche of stocks or shares, usually a new issue. Initial public offering - Wikipedia