flotation

American  

[floh-tey-shuhn] / floʊˈteɪ ʃən /

Rarely floatation

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.

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flotation British  

/ 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

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Etymology

Origin of flotation

First recorded in 1800–10; float + -ation; compare French flottaison ( see flotsam)

Explanation

When something is buoyant, carried on the surface of water, that's flotation. If you have a swimming pool in your backyard, you definitely need at least one unicorn-shaped flotation device. The ability to float is flotation, which can also be spelled floatation. A flotation device can be a safety feature on a boat, like the floating foam rings that can be used in case of emergency or the life jackets sailors wear. It can also be for fun, like an inflatable raft you use for floating around a pond. The Old English root of flotation is flotian, "to rest on the surface of water."

Example Sentences

But on Dec. 12, he was left alone by the pools at Lincoln Elementary School in Ontario without any flotation devices, according to the complaint filed in San Bernardino County Superior Court on Wednesday.

From Los Angeles Times • Apr. 8, 2026

The hardest and most "important" item to source was the yellow flotation barrels, which are like those used by the characters in the blockbuster to track the shark.

From BBC • Apr. 4, 2026

Prosecutors said she embezzled more than $150,000 from clients between 2019 and 2021 to cover other business and personal expenses, including for her side business, a yoga studio with flotation chambers.

From The Wall Street Journal • Oct. 22, 2025

And so, 11 days ago, he shed Miller Moss and buckled into a personal flotation device named Jayden Maiava.

From Los Angeles Times • Nov. 17, 2024

I can swim, so the flotation belt’s not really necessary, but Brutus blocked my arrow with his, so I buckle it back on, thinking it might offer some protection.

From "Catching Fire" by Suzanne Collins

Related Words

• backing