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reverse osmosis n.
The movement of a solvent in the opposite direction from osmosis in such a manner that the solvent moves from a solution of greater concentration through a membrane to a solution of lesser concentration.
|reverse osmosis |
A method of producing pure water by forcing saline or impure water through a semipermeable membrane across which salts or impurities cannot pass. Reverse osmosis is used for water filtration, for desalinization of seawater, and in kidney dialysis machines.