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 Aspiron Canister Vacuum is designed with a powerful brushless motor, three-stage filtration system, and large dust cup that keeps shoppers from having to constantly empty it. — Jill Layton, PEOPLE, 4 July 2026

Finally, all of the whiskey was blended together and bottled at 92 proof with no chill filtration. — Jonah Flicker, Robb Report, 2 July 2026

Smarter oil separation Researchers say the membrane technology can be integrated into existing refinery infrastructure as a modular filtration unit, allowing refineries to adopt the process without replacing major equipment. — Jijo Malayil, Interesting Engineering, 29 June 2026

Swollen or tender nodes at the neck, armpits or groin signal that the body’s filtration sites are overloaded or actively fighting something, per Cleveland Clinic. — Allison Palmer, Kansas City Star, 29 June 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