Definition of filtration in US English:



  • The action or process of filtering something.

    ‘small particles are difficult to remove without filtration’
    • ‘See also filtration, which cannot remove these soluble substances and acts only on particulates.’
    • ‘This is further refined by carbon filtration to remove any traces of molasses before crystallization.’
    • ‘That idea would help water be absorbed locally and cleaned naturally through ground filtration.’
    • ‘It is this filtration that removes some of the harsher flavour in the whiskey and the end product is a smoother and mellower taste.’
    • ‘Essential filtration and heating equipment had to be installed at the 20-year-old pool.’
    • ‘No filtration is proposed for the emissions that would include carbon monoxide, sulphur dioxide and lead.’
    • ‘In the first step, large contaminants were removed by filtration through filter paper.’
    • ‘The filtration is carried out in three stages - primary, intermediate and final.’
    • ‘The word seems to imply the wine is somehow better, but filtration has no correlation with quality.’
    • ‘Filters would be used to improve filtration of outside air and eliminate re-circulated air.’
    • ‘The mixture was sterilized by sequential filtration through 0.45 and 0.22 m filters.’
    • ‘Custom tanks for large specialty fish can run in the thousands of dollars, plus extra for proper heating and filtration.’
    • ‘To address the potential risk, it is important to remove gels by screen filtration.’
    • ‘The bugs cannot be treated using chlorine but are usually removed by filtration.’
    • ‘It is a wholesale and humiliating process of filtration.’
    • ‘Lastly, does the water filtration and circulation process cope with keeping the water in the pools clean?’
    • ‘Apparently it goes through three stages of filtration, but all the same, you wouldn't want to be caught in an avalanche of it, would you?’
    • ‘The beer is produced through cold filtration and is not pasteurised.’
    • ‘They prevent proper filtration of waste material through the soil layers.’
    • ‘Engineer Bill Moorhouse explained that a problem remained with filtration, but that it could be fixed.’
    oozing, seeping, trickle, trickling, drip, dribble, flow, issuance, discharge, excretion, escape, leak, leakage, drainage, bleeding, sweating, welling, leaching, percolation, secretion
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