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English definition of “filter”


noun [C] (EQUIPMENT)    /ˈfɪl.tər/ US  /-t̬ɚ/
C2 any of several types of equipment or devices for removing solids from liquids or gases , or for removing particular types of light : a water filter a dust filter I like to experiment with different light filters on my camera . Ozone is the Earth's primary filter for ultraviolet radiation .Straining and filtering devices
(Definition of filter noun (EQUIPMENT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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