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- Dictionaryfilter/ˈfɪltə/
noun
- 1. a porous device for removing impurities or solid particles from a liquid or gas passed through it: "an oil filter"
- 2. an arrangement whereby vehicles may turn left (or right) while other traffic waiting to go straight ahead or turn right (or left) is stopped by a red light: British "a filter lane"
verb
- 1. pass (a liquid, gas, light, or sound) through a device to remove unwanted material: "the eye filters out ultraviolet radiation" Similar
- 2. move slowly in a specified direction: "the players filtered out on to the pitch" Similar
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a tool for selecting or removing a particular type of information: You can apply filters to capture the most relevant data. A filter on the company computer network is designed to block obscene material. a tool for creating special effects on an image: There's a filter that makes all your pictures look like old sepia photographs.
1. a. : a porous article or mass (as of paper or sand) through which a gas or liquid is passed to separate out matter in suspension. b. : an apparatus containing a filter medium. 2. a. : a device or material for suppressing or minimizing waves or oscillations of certain frequencies (as of electricity, light, or sound) b.
noun. a porous substance, such as paper or sand, that allows fluid to pass but retains suspended solid particles: used to clean fluids or collect solid particles. any device containing such a porous substance for separating suspensions from fluids.
To filter a substance, or to filter particles out of a substance, means to pass it through a device which removes the particles from it. You must boil or filter the water here to make it safe to drink.
1. a. A porous material through which a liquid or gas is passed in order to separate the fluid from suspended particulate matter. b. A device containing such a material, especially one used to extract impurities from air or water. 2. a.
A machine or device that removes dangerous or unwanted materials from a substance passing through it is called a filter. A kitchen water filter makes the water safer to drink — and also taste better.
/ˈfɪltər/ a device containing paper, sand, chemicals, etc. that a liquid or gas is passed through in order to remove any materials that are not wanted. an air/oil filter. a coffee/water filter. filter paper for the coffee machine. He smokes cigarettes without filters. Topics Scientific research c1. Want to learn more?
