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

Example Sentences

Recent Examples on the Web

Plus, according to both brands, their vacuums provide a filtering performance that's twice as powerful compared to other competitive filtration systems. Larry Stansbury, Peoplemag, 18 Nov. 2022

Ventilation is the process of introducing clean air to an indoor space, either by bringing in outdoor air or installing filtration systems to clean the air. Sarah Stark, SELF, 2 Nov. 2022

But Gulick recommends masking while in the airport and when your plane is taxiing, since filtration systems may not be turned on when the plane is grounded. Jamie Ducharme, Time, 31 Oct. 2022

When faced with terrible air quality, Burke recommends staying inside, keeping doors and windows closed and using air purifiers or other filtration systems wherever possible. Shannon Osaka, Anchorage Daily News, 21 Oct. 2022

Ingenuities that many of us use daily such as water filtration systems, scratch-resistant eyeglasses, cochlear implants, memory foam and more, come directly from discoveries within the space industry. Robert Lightfoot, Forbes, 11 Nov. 2022

The units, which can be deployed by one person in about 15 minutes, contain a 5G mesh network, water filtration systems, and workspaces for offices and medical clinics. Byian Mount, Fortune, 18 Oct. 2022

The six 2022 finalists range from a food recycling startup in Singapore to a water filtration startup in Switzerland. Jon Chesto, BostonGlobe.com, 12 Sep. 2022

In its request, the university also asked for a water and sewer line infrastructure assessment, the repair and enlargement of its storm water lines and a new water filtration system. Phil Mccausland, NBC News, 4 Sep. 2022

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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