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

Buyers can gain even more off-grid capability by optionally upgrading to a 750-Ah battery and 800-watt solar setup and/or adding on options like Starlink satellite internet, a Goodguards water filtration system and a Maxview 4x4 LTE 5G antenna. — New Atlas, 5 Sep. 2026

The work included repairs to the Gibson Ranch Lift Station and paving, lighting, piping and other infrastructure improvements associated with the treatment plant’s grit filtration system. — Daniel Lempres, Sacbee.com, 19 Aug. 2026

For homebuyers, assessing HVAC filtration and inquiring about past smoke exposure and remediation are vital. — Jamie Gold, Forbes.com, 18 Aug. 2026

While healthcare packaging and water filtration are exciting areas, DuPont doesn't seem to have enough heft to stay independent. — Kevin Stankiewicz,morgan Chittum, CNBC, 13 Aug. 2026

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
• aeration
• bination
• carnation
• cassation
• castration
• causation
• centration
• cessation
• cetacean
• chelation
• citation

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