| surface resistance to relative motion, as of sliding or rolling. |
| the product of the mass and velocity of an object |
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.