Meaning offloatationin English

Noun

1. staying on soft surfaces (tires, snowshoes etc.)
   The snowshoes provided excellent floatation in the deep powder.
2. launching new stocks or shares (market release)
   The company's floatation on the stock market was highly successful.
3. separating minerals using water and detergents; with air bubbles
   The mineral processing plant used floatation to separate the valuable ores.