filter - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “filter”

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noun [C]  us   /ˈfɪl·tər/
a piece of equipment or a device for removing solids from liquids or gases, or for limiting the particular type of light, sound, or electricity going through it: an oil filter a coffee filter


verb [I/T]  us   /ˈfɪl·tər/
If something filters down, in, out, or through, it appears or happens gradually or to a limited degree: [I always + adv/prep] Reports of the accident began to filter in. [I always + adv/prep] Sunlight filtered through the branches.
(Definition of filter from the Cambridge Academic Content Dictionary © Cambridge University Press)
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