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filter US English

A porous device for removing impurities or solid particles from a liquid or gas passed through it

air filter US English

A device for filtering particles of dust, soot, etc., from the air passing through it, especially one protecting the air inlet of an internal combustion engine

filter bed US English

A tank or pond containing a layer of sand or gravel, used for filtering large quantities of liquid

filter cake US English

A deposit of insoluble material left on a filter

filter tip US English

A filter attached to a cigarette for removing some components from the inhaled smoke

sand filter US English

A filter used in water purification and consisting of layers of sand arranged with coarseness of texture increasing downward

color filter US English

A photographic filter that absorbs light of certain colors

filter paper US English

A piece of porous paper for filtering liquids, used especially in chemical processes and coffee-making

filter press US English

A device consisting of a series of cloth filters fixed to frames, used for the large-scale filtration of liquid under pressure

notch filter US English

A filter that attenuates signals within a very narrow band of frequencies

charcoal filter US English

A filter containing charcoal to absorb impurities

filter feeding US English

(Of an aquatic animal) feeding by filtering out plankton or nutrients suspended in the water

skylight filter US English

A very slightly pink filter that reduces haze and excessive blueness of the sky in photographs by absorbing ultraviolet light

polarizing filter US English

A photographic or optical filter that polarizes the light passing through it, used chiefly for reducing reflections and improving contrast. Two polarizing filters are often used together, such that rotation of one of them results in a neutral density filter of variable density

neutral density filter US English

A photographic or optical filter that absorbs light of all wavelengths to the same extent, causing overall dimming but no change in color

filter US Thesaurus

a carbon filter

filter English-Spanish

filtro m

sun filter English-Spanish

filtro m solar

you may need a filter for outdoor shots in outdoor English-Spanish

quizás necesites un filtro para sacar fotos afuera

roughly speaking, the organ acts as a filter in roughly English-Spanish

el órgano se comporta como un filtro, por así decirlo

it took weeks for the news to filter through to us in filter English-Spanish

pasaron semanas antes de que nos llegara la noticia

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