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

As water filtration costs rise, providers could pass along the price to consumers by billing them higher rates. —Elisabeth Buchwald, CNN, 13 Mar. 2025

Using three-layer HEPA filtration, this Philips model won't miss a thing, even capturing wildfire smoke particles. —Gabriela Vatu, PCMAG, 12 Feb. 2025

Housing reforms to guarantee adequate air filtration and appropriate isolation facilities. —Powel H. Kazanjian, The Conversation, 5 Mar. 2025

Pet owners will appreciate the HEPA filtration system, which traps allergens while picking up fur. —Juhi Wadia, PCMAG, 25 Feb. 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