Definition of reverse osmosis
: the movement of fresh water through a semipermeable membrane when pressure is applied to a solution (such as seawater) on one side of it
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Recent Examples of reverse osmosis from the Web
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There’s a reverse osmosis machine that draws water out of the sap.
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Most plan to deploy the same reverse osmosis technology that is used in coastal projects, in which water is pushed through semipermeable membranes, to treat groundwater.
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Many of the most common technologies -- such as reverse osmosis, deionization and activated alumina -- cost in the hundreds of dollars.
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This makes graphene oxide a real alternative to reverse osmosis or flash heating, and because graphene oxide doesn't require any electricity to run it may be much more efficient.
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Typical desalination works through flash heating or reverse osmosis, both of which require huge amounts of energy.
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Israel's Ashkelon reverse osmosis plant is the largest, supplying about 13 percent of the country's demand for fresh water.
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Rincon said consumers should look for filters certified with an NSF 53 seal for the kind that attaches to your faucet, or a reverse osmosis filtration system certified with an NSF 58 seal.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'reverse osmosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of reverse osmosis
1921
Learn More about reverse osmosis
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See words that rhyme with reverse osmosis Britannica.com: Encyclopedia article about reverse osmosis
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