fil·​tra·​tion | \ fil-ˈtrā-shən How to pronounce filtration (audio) \

Definition of filtration

1 : the process of filtering
2 : the process of passing through or as if through a filter also : diffusion

Examples of filtration in a Sentence

Recent Examples on the Web

The owners of Fair Oaks Farms patented the cold-filtration technology used to produce a drink with 50 percent more protein, 30 percent more calcium and half the sugar of ordinary milk, according to a Feb. 3, 2015 article on Coca-Cola's website. Sarah Bowman, Indianapolis Star, "Animal welfare group documents calf abuse at iconic Fair Oaks Farms, sparking investigation," 5 June 2019 Particulates seep in, and without a filtration system the air indoors can be almost as unhealthy as what’s outdoors. Marc Peruzzi, Outside Online, "Wildfire Smoke Is Here to Stay," 5 June 2019 Meanwhile, in hotter climates, pools will need a top-tier filtration system to control algae. Hadley Keller, House Beautiful, "Should You Put a Natural Swimming Pool In Your Backyard?," 6 May 2019 Just picture Trump as a Midwestern, tattooed Harley-Davidson enthusiast whose business passion is water filtration technology rather than real estate. Tara Golshan, Vox, "Paul Nehlen, the alt-right candidate running for Paul Ryan’s seat, explained," 12 Apr. 2018 So, all that said, consider filtration devices for your kitchen sink and for your portable bottle. Sally Tamarkin, SELF, "22 Easy Ways to Drink More Water Every Day," 3 Jan. 2019 Garrett had a sleeping bag, a water filtration device, a little food and part of a tent. Bob Moen, The Seattle Times, "Bugs, bark helped Boy Scout survive in Wyoming wilderness," 30 July 2018 By promoting soils that provide natural filtration and creating a vegetative cover that minimizes soil erosion and sediment runoff, forests keep Michigan water quality high. Michigan Department Of Natural Resources, Detroit Free Press, "A taste of the Michigan forest," 4 Jan. 2018 The family-size T-fal 7211002145 FR8000 Deep Fryer has a 3.5-liter oil capacity, an immersed heating element that quickly recovers oil temperature, and an automatic oil-filtration system. Francine Maroukian, Popular Mechanics, "The Best Deep Fryers—and How to Fry Anything," 14 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'filtration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of filtration

1602, in the meaning defined at sense 1

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Statistics for filtration

Last Updated

12 Jun 2019

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Time Traveler for filtration

The first known use of filtration was in 1602

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English Language Learners Definition of filtration

technical : the act or process of removing something unwanted from a liquid, gas, etc., by using a filter


fil·​tra·​tion | \ fil-ˈtrā-shən How to pronounce filtration (audio) \

Kids Definition of filtration

: the process of filtering


fil·​tra·​tion | \ fil-ˈtrā-shən How to pronounce filtration (audio) \

Medical Definition of filtration

1 : the process of filtering
2 : the process of passing through or as if through a filter also : diffusion the kidney produces urine by filtration

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More from Merriam-Webster on filtration

Rhyming Dictionary: Words that rhyme with filtration

Spanish Central: Translation of filtration

Nglish: Translation of filtration for Spanish Speakers

Britannica English: Translation of filtration for Arabic Speakers

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