Definition of filters in English

Wiktionary

filters (Noun)
Plural of filter.

Part of speech

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filters, verb, present, 3rd person singular of filter (infinitive).
filters, noun, plural of filter.

WordNet

Noun Plural: filters
filter - device that removes something from whatever passes through it
		device any clever maneuver; "he would stoop to any device to win a point"; "it was a great sales gimmick"; "a cheap promotions gimmick for greedy businessmen"
		air cleaner, air filter a filter that removes dust from the air that passes through it
		bacteria bed layer of sand or gravel used to expose sewage effluent to air and the action of microorganisms
		coffee filter filter (usually of paper) that passes the coffee and retains the coffee grounds
		drain basket a filter in a sink drain; traps debris but passes water
		filter bed filter consisting of a layer of sand or gravel for filtering water
		fuel filter a filter in the fuel line that screens out dirt and rust particles from the fuel
		diffusing screen, light filter a transparent filter that reduces the light (or some wavelengths of the light) passing through it
		oil filter a filter that removes impurities from the oil used to lubricate an internal-combustion engine
		strainer a filter to retain larger pieces while smaller pieces and liquids pass through
		water filter a filter to remove impurities from the water supply
		glass wool glass fibers spun and massed into bundles resembling wool
filter - an electrical device that alters the frequency spectrum of signals passing through it
		electrical device a device that produces or is powered by electricity
		high-pass filter a filter that passes frequencies above a certain value and attenuates frequencies below that value
Verb filters, filtering, filtered
filter - remove by passing through a filter; "filter out the impurities"
		filtrate, strain, separate out, filter out
		separate divide into components or constituents; "Separate the wheat from the chaff"
filter - pass through; "Water permeates sand easily"
		percolate, sink in, permeate
		perforate, penetrate come to understand
		infiltrate pass through an enemy line; in a military conflict
		infiltrate pass through an enemy line; in a military conflict
filter - run or flow slowly, as in drops or in an unsteady stream; "water trickled onto the lawn from the broken hose"; "reports began to dribble in"
		trickle, dribble
		course, flow, feed, run hunt with hounds; "He often courses hares"
		leach, percolate remove substances from by a percolating liquid; "leach the soil"

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Wiktionary

filter (Noun)
A device which separates a suspended, dissolved, or particulate matter from a fluid, solution, or other substance; any device that separates one substance from another.
filter (Noun)
Electronics or software that separates unwanted signals for example noise from wanted signals or that attenuates selected frequencies.
filter (Noun)
Any item, mechanism, device or procedure that acts to separate or isolate.
filter (Noun)
A non-empty empty upper set of a partially ordered set which is closed under binary infima a. k. a. meets.
filter (Verb)
To sort, sift, or isolate.
filter (Verb)
To diffuse; to cause to be less concentrated or focused.
filter (Verb)
To pass through a filter or to act as though passing through a filter.
filter (Verb)
To move slowly or gradually; to come or go a few at a time.
filter (Verb)
To ride a motorcycle between lanes on a road.

Webster DictionaryWebster's Unabridged Dictionary 📘

filter (n.)
Any porous substance, as cloth, paper, sand, or charcoal, through which water or other liquid may passed to cleanse it from the solid or impure matter held in suspension; a chamber or device containing such substance; a strainer; also, a similar device for purifying air.
filter (n.)
To purify or defecate, as water or other liquid, by causing it to pass through a filter.
filter (v. i.)
To pass through a filter; to percolate.
filter (n.)
Same as Philter.

OmegaWiki DictionaryOmegaWiki Dictionary Ω

filter
A porous material for separating suspended particulate matter from liquids by passing the liquid through the pores in the filter and sieving out the solids.\n(Source: MGH)
filter
Any item, mechanism, device or procedure that acts to separate or isolate.
filter
To separate or isolate components from one another with the help of a filter.

Chambers DictionaryChamber's 20th Century Dictionary 📕

filter
fil′ter, n. a contrivance arranged for purifying a liquid of solid insoluble matter by passing it through some porous substance which does not allow the solid particles to pass through.—v.t. to purify liquor by a filter.—v.i. to pass through a filter: to percolate.—ns. Fil′ter-pā′per, porous paper for use in filtering; Fil′ter-pump, a contrivance devised by the chemist Bunsen for accelerating the filtering process. [O. Fr. filtre—Low L. filtrum, felt.]

Sailor's Word-BookThe Sailor's Word-Book ⛵

filter
A strainer to free water from its impurities, usually termed by seamen drip-stone (which see).

Wikipedia

A filter is a device used to remove unwanted parts from something. For example, removing solid particles from a liquid. Filter can also mean the act of filtering: it can be used as a verb. The different branches of science and technology often mean a particular kind of device when "filter" is mentioned.

In chemistry.

The simplest filter is the kind called filter paper. Liquids can pass through the paper. Solid particles are stopped.

More advanced filters are possible. Two that are often used to make water more pure are activated carbon and zeolites.

In electrical science.

The most usual thing meant by filter in electrical science is a wave filter. This is a filter which will let through some frequencies and stops all others. For instance, a filter can be used in a radio to select the station the listener wants to hear. The frequency of that station is passed, but all others are rejected.

There are many other uses, including use in telephones and audio.

There are digital filters which can be used to filter things besides frequencies. A common use is to improve the quality of pictures. For instance, there are filters which can make the edges of objects look more clear.

In mechanics.

Filters can be made from mechanical components. They will do very similar things to electric filters. Most especially, mechanical filters can be wave filters. That is, they can block some frequencies and pass others. Because of this, electric filters are sometimes made by first making a mechanical f
internet
A filter is a website feature that removes some kinds of content. This can be to stop the user viewing the unwanted content. It can also be to stop the user posting content the site does not want. Internet filters most often work by stopping certain words being used. Filters to stop other content, such as certain kinds of pictures, can also be used. A filter can be used to only stop a certain kind of user seeing the content, children for example.

Where filters are used.

Filters are very common in e-mail systems. Online games, usually children's games, sometimes have filters. Wikis have filters, too.

In the USA, there is a filter used with TV called the V-chip. Sometimes parents use it when they want to control what their children are allowed to watch.