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filter

PRIMARY MEANINGS OF: filter

1	n v	device that removes something from whatever passes through it remove by passing through a filter
2	n	an electrical device that alters the frequency spectrum of signals passing through it

FULL DEFINITIONS OF: filter

n device that removes something from whatever passes through it

Types:: show 16 types...; hide 16 types...; 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; diatomaceous earth, diatomite, kieselguhr
a light soil consisting of siliceous diatom remains and often used as a filtering material; colander, cullender
bowl-shaped strainer; used to wash or drain foods; filter tip
an air filter on the end of a cigarette; contains material that filters the smoke; screen, sieve
a strainer for separating lumps from powdered material or grading particles; tea-strainer
a device to keep back tea leaves when pouring a cup of tea

Type of:: device
an instrumentality invented for a particular purpose

v remove by passing through a filter

“filter out the impurities”

Synonyms:: filter out, filtrate, separate out, strain

Type of:: separate
divide into components or constituents

v pass through

Synonyms:: percolate, permeate, sink in

Types:: infiltrate
pass into or through by filtering or permeating; infiltrate
cause (a liquid) to enter by penetrating the interstices

Type of:: penetrate, perforate
pass into or through, often by overcoming resistance

v run or flow slowly, as in drops or in an unsteady stream

Synonyms:: dribble, trickle

Types:: leach, percolate
permeate or penetrate gradually

Type of:: course, feed, flow, run
move along, of liquids

n an electrical device that alters the frequency spectrum of signals passing through it

Types:: high-pass filter
a filter that passes frequencies above a certain value and attenuates frequencies below that value; low-pass filter
a filter that passes frequencies below a certain value and attenuates frequencies above that value

Type of:: electrical device
a device that produces or is powered by electricity

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