filtration

noun

fil·​tra·​tion fil-ˈtrā-shən 

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 cordless vac has powerful suction, cyclonic filtration, a brushless motor, an easily removable roller bar, and lights on the vacuum head to better see pet hair and dander. —Nena Farrell, Wired News, 3 May 2025

That's why Boyett says the Corps helped provide special reverse osmosis water filtration systems for Plaquemines Parish's water supply. —Kati Weis, CBS News, 28 Apr. 2025

Jack Daniel’s Old No. 7 Tennessee Whiskey The whiskey is produced at the Jack Daniel Distillery, Lynchburg, TN, using the Lincoln County process of maple charcoal filtration. —Joseph V Micallef, Forbes.com, 26 Apr. 2025

While some communities are able to comply by shutting off certain wells or blending water with cleaner wells, others including Hastings, South St. Paul and Stillwater will have to install costly new filtration systems to remove the chemicals. —Talia McWright, Twin Cities, 11 Apr. 2025

Word History

Etymology

borrowed from Middle French & Medieval Latin; Middle French, borrowed from Medieval Latin filtrātiōn-, filtrātiō, from filtrāre "to pass through a filter" + Latin -tiōn-, -tiō, suffix of verbal action — more at filtrate

First Known Use

1602, in the meaning defined at sense 1

Rhymes for filtration

• ablation
• bination
• carnation
• cassation
• castration
• causation
• centration
• cessation
• cetacean
• chelation
• citation
• collation

Kids Definition

filtration

noun

fil·​tra·​tion fil-ˈtrā-shən 

: the act or process of filtering

Medical Definition

filtration

noun

fil·​tra·​tion fil-ˈtrā-shən 

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