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- DictionaryFil·ter/ˈfiltər/
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 patient is hooked up to a dialysis machine twice a week to filter out the cholesterol in the blood"
The meaning of FILTER is a porous article or mass (as of paper or sand) through which a gas or liquid is passed to separate out matter in suspension. How to use filter in a sentence.
any of several types of equipment or devices for removing solids from liquids or gases, or for removing particular types of light: a water filter. a dust filter. Ozone is the earth's primary filter for ultraviolet radiation.
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.
any of several types of equipment or devices for removing solids from liquids or gases, or for removing particular types of light: a water filter. a dust filter. Ozone is the earth's primary filter for ultraviolet radiation. a thin piece of plastic or glass placed in front of a camera lens in order to change the color or amount of light ...
5 days ago · 1. any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, through which liquid or gas is passed to remove suspended impurities or to recover solids. 2. any device, as a tank or tube, containing such a substance for filtering.
filter. noun. /ˈfɪltə (r)/. /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.
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.
