| NOUN | process | reverse osmosis | (chemistry) a method of producing pure water |
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| Meaning | (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. | |
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| Category | chemistry, chemical science | The science of matter |
| Broader | osmosis | (biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal |
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