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

Ruby and Grimes visited East Palestine, Ohio, last year, distributing 250 water filtration systems to residents and donating $100,000 after the village was impacted by a toxic train derailment. —Haadiza Ogwude, The Enquirer, 26 Nov. 2024

This top-tier ice bath offers exceptional features such as precise temperature control, advanced filtration systems and a spacious design. —Kasey Caminiti, USA TODAY, 20 Nov. 2024

What’s left is indeed a filtration of the popular vote, but one that has morphed into a device whereby the minority defeats the majority. —Joseph J. Ellis, The Mercury News, 31 Oct. 2024

The bourbon in question here, however, is a special limited release called Commander’s Select VI, a high-rye Kentucky bourbon that was aged for 12 years and bottled at cask strength of 120 proof with no chill filtration. —Jonah Flicker, Robb Report, 27 Oct. 2024

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

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