Floatation

[floh-tey-shuh n] /floʊˈteɪ ʃən/

noun
1.
.
[floh-tey-shuh n] /floʊˈteɪ ʃən/
noun
1.
an act or state of .
2.
the launching of a commercial venture, bond issue, loan, etc.
3.
Metallurgy. a process for separating the different minerals in a mass of powdered ore based on their tendency to sink in, or on, a given liquid.
4.
the science of bodies.
/fləʊˈteɪʃən/
noun
1.
a variant spelling of flotation
/fləʊˈteɪʃən/
noun
1.

2.
power or ability to float; buoyancy
3.
Also called froth flotation. a process to concentrate the valuable ore in low-grade ores. The ore is ground to a powder, mixed with water containing surface-active chemicals, and vigorously aerated. The bubbles formed trap the required ore fragments and carry them to the surface froth, which is then skimmed off
n.

1806, the older, more etymological, but less popular spelling of flotation.
n.

1850s, from float (v.) + -ation. Spelling influenced by French (cf. floatation).

flotation flo·ta·tion (flō-tā’shən)
n.
The process of separating different materials, especially minerals, by agitating a pulverized mixture of the materials with water, oil, and chemicals. Differential wetting of the suspended particles causes unwetted particles to be carried by air bubbles to the surface for collection.