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 mashbill is 100 percent rye that was grown in Alberta, and it was aged in heavily charred but not toasted barrels for the duration of its maturation, and bottled without chill filtration at 111 proof. —Jonah Flicker, Robb Report, 10 Dec. 2025

Post-renovation, every room and suite is equipped with a wet bar with a water filtration system so guests can refill their water bottles (provided by the hotel). —Dobrina Zhekova, Travel + Leisure, 5 Dec. 2025

Anaheim is spending $200 million to outfit several of its groundwater wells with ion exchange filtration – a technique that uses resin beads to snare and remove particles from water, according to the city website. —Austin Fast, USA Today, 5 Dec. 2025

Recent upgrades — including a 2022 roof, whole-house water filtration, and sleek Miele and Bosch appliances — add confidence and convenience. —Miriam Schwartz, Boston Herald, 4 Dec. 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