reverse osmosis

reverse osmosis
reverse′ osmo′sis
n.
chem. a process in which pure water is produced by forcing waste or saline water through a semipermeable membrane

From formal English to slang. 2014.

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  • reverse osmosis — n. a method of extracting essentially pure, fresh water from polluted or salt water by forcing the water under pressure against a semipermeable membrane, which passes the pure water molecules and filters out salts and and other dissolved… …   English World dictionary

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  • Reverse osmosis plant — A reverse osmosis plant is a manufacturing plant where the process of reverse osmosis takes place. An average modern reverse osmosis plant needs six kilowatt hours of electricity to desalinate one cubic metre of water.Fact|date=August 2007 The… …   Wikipedia

  • Reverse Osmosis Water Purification Unit — A Reverse Osmosis Water Purification Unit (ROWPU) is a portable, self contained water treatment plant. Designed for military use, it can provide potable water from nearly any water source. There are many model ROWPUs in use by the United States… …   Wikipedia

  • reverse osmosis — noun (chemistry) a method of producing pure water; a solvent passes through a semipermeable membrane in a direction opposite to that for natural osmosis when it is subjected to a hydrostatic pressure greater than the osmotic pressure • Topics:… …   Useful english dictionary

  • reverse osmosis — noun Chemistry a process by which a solvent passes through a porous membrane in the direction opposite to that for natural osmosis when subjected to a hydrostatic pressure greater than the osmotic pressure …   English new terms dictionary

  • reverse osmosis — /rəvɜs ɒzˈmoʊsəs/ (say ruhvers oz mohsuhs) noun a water purifying technique by which a fluid moves under pressure through a membrane from a high solute concentration to a lesser concentration. Compare osmosis …  

  • reverse osmosis — noun Date: 1955 the movement of freshwater through a semipermeable membrane when pressure is applied to a solution (as seawater) on one side of it …   New Collegiate Dictionary

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