Look up Filter in Wiktionary, the free dictionary. The term filter may refer to: In chemistry, engineering, or household usage, a device to separate mixtures. See filter (chemistry) filter (water) filter (air) filter (oil) pneumatic filter cigarette filter. In optics and photography, a device to remove or block certain wavelengths (colors) of light. See filter (optics) filter (photography) infrared filter In signal processing applications such as telecommunications and music, an electronic or mechanical device, or mathematical algorithm, to modify the harmonic content of signals. See electronic filter audio filter. In computing, a program to process a data stream. See filter (software) filter (Unix) mail filter Internet filter lameness filter. In mathematics, a certain kind of subset of a partially ordered set. See filter (mathematics). In psychology, a type of learning blockage. See affective filter. Filter may also be the name of: Filter (band), an industrial rock band Filter (television), a show on the G4 channel: Filter (magazine), an off-beat indie music magazine See also Filter coffee, a hot drink Filter feeder, an animal that strains food particles from water Philter, a magical potion Filtration Conversion This disambiguation page lists articles associated with the same title. If an internal link referred you here, you may wish to change the link to point directly to the intended article. Search Term: "Filter" Categories: Disambiguation | Filters

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