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

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

Older age statements, barrel-strength bottlings, non-chill filtration, single barrels, micro-batches and distinctive packaging led to sustained success in export markets like Japan and Europe. — Chris Perugini, Forbes.com, 12 Aug. 2026

Despite this multi-layered surveillance system, Tuesday’s massive influx overwhelmed the filtration hardware, forcing operators to bring the reactors offline once again to safeguard the facilities. — Aman Tripathi, Interesting Engineering, 12 Aug. 2026

Other violations at Bucky Dent Water Park included problems with pumps and filtration systems, including a leaking filter and a stuck flow meter. — Verónica Egui Brito, Miami Herald, 11 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