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Filter A porous material through which a liquid or gas is passed in order to separate the fluid from suspended particulate matter. A device containing such a substance. Shown is an air filter. Back to 5000 Word List 100 |
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Filter A porous material through which a liquid or gas is passed in order to separate the fluid from suspended particulate matter. A device containing such a substance. Shown is an air filter. Back to 5000 Word List 100 |