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

The vacuum’s efficient multi-layer filtration system traps airborne particles utilizing HEPA and foam filters, both of which are washable and reusable. —Maggie Horton, PEOPLE, 7 Nov. 2025

Regular honey undergoes processing with filtration and pasteurization. —Angela Ryan Lee, Verywell Health, 6 Nov. 2025

Contributor Terri Williams praises its 50-minute run-time; tangle-free, five-stage filtration system; and dustbin disposal that deploys at the touch of a button. —Nashia Baker, Architectural Digest, 5 Nov. 2025

Cytiva, which supplies filtration, single-use hardware, and other manufacturing tools for biologic drugs, saw high single-digit core revenue growth. —Natasha Abellard, CNBC, 5 Nov. 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