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Look up filter in Wiktionary, the free dictionary. |
Filter may refer to:
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Chemistry, engineering and materials
In chemistry, engineering, or household usage, a device to separate mixtures. See:
- Filter (chemistry)
- Water filter
- Air filter
- Oil filter
- Pneumatic filter
- Filter (aquarium)
- Filter paper
Optics and photography
In optics and photography, a device to remove, or to enhance, certain ranges of wavelengths (colors) of light. See:
Signal processing
In signal processing, an algorithm or device for removing part(s) of a signal:
- Filter (signal processing), especially,
Computing
In computing:
- Filter (higher-order function)
- A program to process a data stream:
- BPF filter expression used in the qualification of network data
Philosophy
- Category-based filtering of perception — according to (objectivist interpretations of) Kant
Other
- In mathematics, a certain kind of subset of a partially ordered set. See
- In psychology, a type of learning blockage. See
- In transportation. See
- Filtering forward, a practice that cyclists use to pass slow or stopped congested traffic
Proper name
- Filter (band), an industrial rock band
- Filter (TV series), a show on the G4 channel
- Filter (magazine), an off-beat indie music magazine
- Helicon Filter, a raster graphics editor
See also
- Filter coffee, a method for preparing coffee
- Filter feeder, an animal that strains food particles from water
- Philter, a magical potion
- Filtration
- Cigarette filter
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