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

For instance, in properties with high water demand, robust filtration systems mitigate contamination risks in water features like pools and showers. —Richard Lindhorn, Forbes, 19 Feb. 2025

One of the bonuses of a filtration system is less waste—something the world can benefit from. —Samantha Mims, Essence, 3 Feb. 2025

In addition to its strong suction and versatility, the vacuum’s five-layer filtration system traps tiny particles like dust, pollen, and pet dander. —Clara McMahon, People.com, 2 Feb. 2025

Proteins like albumin cannot pass through a healthy kidney's powerful filtration system. —Heidi Cope, Health, 28 Jan. 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