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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.
