filtration

noun
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

This is determined by a blood test for creatinine and glomerular filtration rate (GFR). Howard Lewine, sun-sentinel.com, "Stay on Coumadin or switch to a new blood thinner?," 14 Aug. 2019 The initiative provides training and materials for teachers to conduct science activities, such as building aquifer or filtration models that can further kids’ understanding of limited water resources. María Méndez, Dallas News, "Here’s how one program teaches kids water conservation, potentially saving Dallas millions," 19 July 2019 Gaps in air filtration is believed to have been key in the presence of mold, Bernal said. Chris Boyette, CNN, "Seattle Children's Hospital operating rooms shut down after a patient dies of mold infection," 3 July 2019 Beyond the visitors center will be a water filtration garden. Laurel Deppen, The Courier-Journal, "What you need to know about Louisville's Waterfront Botanical Gardens project," 2 July 2019 Weather-stripping or air filtration installed in the smoker’s unit may prevent the smoke from escaping and seeping into neighboring units. Gary M. Singer, Sun-Sentinel.com, "Ask a real estate pro: Neighbor's smoking is getting into my unit. What can I do?," 22 June 2018 The new rules apply to outdoor workers and semi-indoor places, like auto body shops that aren’t completely enclosed and don’t have air filtration systems. Peter Fimrite, SFChronicle.com, "New rules to protect workers when wildfires’ smoke fills the air," 29 July 2019 These icemen start with tap water, which flows through a five-step filtration system that peels away impurities. Phillip Valys, sun-sentinel.com, "Nice ice, baby: Fancy ‘clear ice’ taking South Florida cocktails to cooler heights," 26 July 2019 Drenzek added that the Sheraton is also working on the filtration system in the hotel's swimming pool. Susan Scutti, CNN, "5 cases of Legionnaires' disease follow visits to downtown Atlanta hotel," 17 July 2019

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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More Definitions for filtration

filtration

noun

English Language Learners Definition of filtration

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

filtration

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

Kids Definition of filtration

: the process of filtering

filtration

noun
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