reverse osmosis

noun

: the movement of fresh water through a semipermeable membrane when pressure is applied to a solution (such as seawater) on one side of it

Examples of reverse osmosis in a Sentence

Recent Examples on the Web
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Waterdrop Filter, for example, offers several reverse osmosis systems designed for different types of homes. Malana Vantyler, USA Today, 6 May 2026 Standard water filters do not remove nitrates; effective treatment requires systems like reverse osmosis or distillation. Stephanie Brown, Verywell Health, 5 May 2026 The base is reverse osmosis water with yuzu, ginger, and honey, which balances out the usual abrasive taste of a wellness shot. Kate Kassin, Bon Appetit Magazine, 30 Apr. 2026 The process would remove heavy metals and use industrial reverse osmosis technology. Arcelia Martin, San Antonio Express-News, 27 Apr. 2026 See All Example Sentences for reverse osmosis

Word History

First Known Use

1921, in the meaning defined above

Time Traveler
The first known use of reverse osmosis was in 1921

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Cite this Entry

“Reverse osmosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reverse%20osmosis. Accessed 11 May. 2026.

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