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flotation

[floh-tey-shuh n] /floʊˈteɪ ʃən/
noun
1.
an act or state of floating.
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 float on, a given liquid.
4.
the science of floating bodies.
Origin of flotation
1800-1810
1800-10; float + -ation; compare French flottaison (see flotsam)
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for flotation

flotation

/fləʊˈteɪʃən/
noun
1.
  1. the launching or financing of a commercial enterprise by bond or share issues
  2. the raising of a loan or new capital by bond or share issues
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for flotation
n.

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

Online Etymology Dictionary, © 2010 Douglas Harper
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flotation in Medicine

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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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