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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Replacing the pipes can treat this issue, although a more affordable solution is to install a reverse osmosis filter or water softener. Timothy Dale, Better Homes & Gardens, 9 Oct. 2024 Culligan recommends changing its charcoal filters every two to six months; reverse osmosis filters every three to five years; and whole-home systems every several years. Jeffrey Kluger, TIME, 9 Aug. 2024 For example, Dupont’s reverse osmosis membranes are used for filtration in areas with spotty access to clean water. Paulina Likos, CNBC, 9 Aug. 2024 But the options are endless, from simple $20 charcoal-filter pitchers to reverse osmosis, point-of-entry, or ultraviolet filters. Jeffrey Kluger, TIME, 9 Aug. 2024 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

Dictionary Entries Near reverse osmosis

Cite this Entry

“Reverse osmosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reverse%20osmosis. Accessed 3 Dec. 2024.

More from Merriam-Webster on reverse osmosis

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!