filtration

noun
fil·tra·tion | \ fil-ˈtrā-shən \

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

Read more: Quagga mussels now cover much of the Lake Michigan bottom, and its their immense amount of filtration that is reducing E. coli counts. Keith Matheny, Detroit Free Press, "Surprising species helps Lake Michigan E. coli levels," 25 May 2018 The vacuum comes with an extra level of filtration to help get rid of pesky allergens and can be used on a ton of different surfaces like carpets, upholstery, stairs, counter tops, and hard floors. Lindsey Murray, Good Housekeeping, "This Popular Bissell Vacuum Is $60 on Amazon Today," 4 Apr. 2018 Others demonstrated how mini-wind turbines worked or used a water filtration to clean dirty water, said Stephanie Czapka, the school’s PTO vice president and a former elementary school teacher who helped organize it. Meredith Colias-pete, Post-Tribune, "Munster science program for elementary students run by parents expands," 1 June 2018 According to the Centers for Disease Control and Prevention, test levels above 15 parts per billion require immediate action, which can include removing the water fixture or installing a filtration system. Lauryn Schroeder, sandiegouniontribune.com, "S.D. school district board sends $3.5 billion bond to November ballot," 10 July 2018 And then the filtration system was just like what you’d have on a pool. Tasha Robinson, The Verge, "Why the hardest special effect on A Quiet Place was corn," 8 July 2018 Rainbow also will spend $18 million to fully enclose the trash facility and install a ventilation and filtration system to help reduce noise and odors. Priscella Vega, latimes.com, "Demolition clears way for new multipurpose room at H.B.'s Oak View Elementary School," 5 July 2018 Along with serving as breeding and migration habitats for waterfowl, wetlands serve as nature’s filtration system, Sebastian said. Mi Clear, Detroit Free Press, "MI CLEAR brings together diverse groups to reduce algae blooms in Lake Erie," 20 June 2018 The kitchen also has professional grade appliances including a Sub-Zero refrigerator and six-burner gas range as well as a Flow Tech filtration system. Lisa Zapalac, Houston Chronicle, "River Oaks custom on tree-lined street near park," 17 June 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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Last Updated

21 Aug 2018

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Time Traveler for filtration

The first known use of filtration was in 1602

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More Definitions for filtration

filtration

noun

English Language Learners Definition of filtration

: 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 \

Kids Definition of filtration

: the process of filtering

filtration

noun
fil·tra·tion | \ fil-ˈtrā-shən \

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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