filter

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fil·ter

 (fĭl′tər)
n.
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. Any of various electric, electronic, acoustic, or optical devices used to reject signals, vibrations, or radiations of certain frequencies while allowing others to pass.
b. A colored glass or other transparent material used to select the wavelengths of light allowed to reach a photosensitive material.
3. Computers A program or device that blocks email or restricts website access when specific criteria are met.
4. Informal The ability or tendency to censor oneself, as to avoid causing embarrassment or offense: My roommate has no filter and says whatever he's thinking at the moment.
v. fil·tered, fil·ter·ing, fil·ters
v.tr.
1. To pass (a liquid or gas) through a filter.
2. To remove by passing through a filter: filter out impurities.
3. Computers To use a filter to block or restrict access to: a program that filters spam.
4. Informal To censor (oneself), as to avoid causing embarrassment or offense.
v.intr.
1. To pass through or as if through a filter: Light filtered through the blinds.
2. To come or go gradually and in small groups: The audience filtered back into the hall.

[Middle English filtre, from Old French, from Medieval Latin filtrum, of Germanic origin; see pel- in Indo-European roots.]

fil′ter·er n.
fil′ter·less adj.

filter

(ˈfɪltə)
n
1. (Chemistry) 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
2. (Chemistry) any device containing such a porous substance for separating suspensions from fluids
3. (Brewing) any of various porous substances built into the mouth end of a cigarette or cigar for absorbing impurities such as tar
4. (General Physics) any electronic, optical, or acoustic device that blocks signals or radiations of certain frequencies while allowing others to pass. See also band-pass filter
5. (Photography) any transparent disc of gelatine or glass used to eliminate or reduce the intensity of given frequencies from the light leaving a lamp, entering a camera, etc
6. (Automotive Engineering) Brit a traffic signal at a road junction consisting of a green arrow which when illuminated permits vehicles to turn either left or right when the main signals are red
vb
7. (Chemistry) (often foll by out) to remove or separate (suspended particles, wavelengths of radiation, etc) from (a liquid, gas, radiation, etc) by the action of a filter
8. (tr) to obtain by filtering
9. (foll by: through) to pass (through a filter or something like a filter): dust filtered through the screen.
10. (intr) to flow slowly; trickle
[C16 filtre from Medieval Latin filtrum piece of felt used as a filter, of Germanic origin; see felt2]

fil•ter

(ˈfɪl tər)

n.
1. any substance, as cloth, paper, porous porcelain, or charcoal, 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.
3. any of various analogous devices, as for removing dust from air or impurities from tobacco smoke.
4. Informal. a filter-tipped cigarette or cigar.
5. a lens screen of dyed gelatin or glass used in photography to control the rendering of color or to diminish the intensity of light.
6. an electronic circuit or device that passes certain frequencies and blocks others.
v.t.
7. to remove by the action of a filter.
8. to act as a filter for; to slow or partially obstruct the passage of.
9. to pass through or as if through a filter.
v.i.
10. to pass or slip through slowly, as through an obstruction or a filter; penetrate.
[1375–1425; late Middle English filtre < Medieval Latin filtrum felt, piece of felt used to strain liquids < Germanic; see felt2]
fil′ter•er, n.

fil·ter

(fĭl′tər)
1. A material that has very tiny holes and is used to separate out solid particles contained in a liquid or gas that is passed through it.
2. A device that allows certain frequencies of energy waves to pass while blocking the passage of others. For example, filters on photographic lenses allow only certain frequencies of light to enter the camera.

filter

In electronics, a device which transmits only part of the incident energy and may thereby change the spectral distribution of energy: a. High pass filters transmit energy above a certain frequency; b. Low pass filters transmit energy below a certain frequency; c. Band pass filters transmit energy of a certain bandwidth; d. Band stop filters transmit energy outside a specific frequency band.

filter


Past participle: filtered
Gerund: filtering

Imperative
filter
filter
Present
I filter
you filter
he/she/it filters
we filter
you filter
they filter
Preterite
I filtered
you filtered
he/she/it filtered
we filtered
you filtered
they filtered
Present Continuous
I am filtering
you are filtering
he/she/it is filtering
we are filtering
you are filtering
they are filtering
Present Perfect
I have filtered
you have filtered
he/she/it has filtered
we have filtered
you have filtered
they have filtered
Past Continuous
I was filtering
you were filtering
he/she/it was filtering
we were filtering
you were filtering
they were filtering
Past Perfect
I had filtered
you had filtered
he/she/it had filtered
we had filtered
you had filtered
they had filtered
Future
I will filter
you will filter
he/she/it will filter
we will filter
you will filter
they will filter
Future Perfect
I will have filtered
you will have filtered
he/she/it will have filtered
we will have filtered
you will have filtered
they will have filtered
Future Continuous
I will be filtering
you will be filtering
he/she/it will be filtering
we will be filtering
you will be filtering
they will be filtering
Present Perfect Continuous
I have been filtering
you have been filtering
he/she/it has been filtering
we have been filtering
you have been filtering
they have been filtering
Future Perfect Continuous
I will have been filtering
you will have been filtering
he/she/it will have been filtering
we will have been filtering
you will have been filtering
they will have been filtering
Past Perfect Continuous
I had been filtering
you had been filtering
he/she/it had been filtering
we had been filtering
you had been filtering
they had been filtering
Conditional
I would filter
you would filter
he/she/it would filter
we would filter
you would filter
they would filter
Past Conditional
I would have filtered
you would have filtered
he/she/it would have filtered
we would have filtered
you would have filtered
they would have filtered

filter

A device containing a porous material, for example, paper or sand, which can remove suspended solid particles from a fluid.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.filter - device that removes something from whatever passes through itfilter - device that removes something from whatever passes through it
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
device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
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
2.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
low-pass filter - a filter that passes frequencies below a certain value and attenuates frequencies above that value
Verb1.filter - remove by passing through a filter; "filter out the impurities"
separate - divide into components or constituents; "Separate the wheat from the chaff"
2.filter - pass through; "Water permeates sand easily"
penetrate, perforate - pass into or through, often by overcoming resistance; "The bullet penetrated her chest"
infiltrate - pass into or through by filtering or permeating; "the substance infiltrated the material"
infiltrate - cause (a liquid) to enter by penetrating the interstices
3.filter - run or flow slowly, as in drops or in an unsteady streamfilter - 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"
course, flow, run, feed - move along, of liquids; "Water flowed into the cave"; "the Missouri feeds into the Mississippi"
percolate, leach - permeate or penetrate gradually; "the fertilizer leached into the ground"

filter

verb
1. purify, treat, strain, refine, riddle, sift, sieve, winnow, filtrate, screen The best prevention for cholera is to filter water.
2. trickle, leach, seep, percolate, well, escape, leak, penetrate, ooze, dribble, exude Water filtered through the peat.
3. seep, trickle, percolate, reach gradually The news began to filter through to the politicians.
noun
1. sieve, mesh, gauze, strainer, membrane, riddle, sifter a paper coffee filter
Translations
جِهَاز تَرْشِيحجِهاز تَرْشيحمُرَشِّح ألوانيَتَسَرَّبيُرَشَّح السائِل
filtrfiltrovatfiltrovýpronikatprosakovat
filterfiltreresivefilter-
suodatinsuodattaasuodattuasuodintippua
filterfiltrirati
kiegészítõ lámpával kanyarodik
filter; ljóssía, litsíasíasía, filtersíast út
フィルター濾過する濾過器
거르다필터
cigaretė su filtrufiltrasfiltruotifiltruotisprasiskverbti
filtrskļūt zināmamnākt gaismāfiltr-filtrēt
filterfiltrovaťfiltrový
filterfiltrirati
filterfiltrera
เครื่องกรองกรอง
lọccái lọc

filter

[ˈfɪltəʳ]
A. N
1. (gen, Phot) → filtro m
2. (Brit) (Aut) → semáforo m de flecha de desvío
B. VT [+ liquid, air] → filtrar
C. VI [liquid, light] → filtrarse
to filter to the left (Aut) → tomar el carril izquierdo
D. CPD filter coffee N (= powder) → café m para filtrar; (= cup of coffee) → café m hecho con cafetera de filtro
filter lane N (Aut) → carril m de giro
filter light Nsemáforo m de flecha de desvío
filter paper Npapel m de filtro
filter back VI + ADV [news, rumour] → llegar; [people] → volver poco a poco
filter in VI + ADV [light] → filtrarse; [news, rumour] → llegar; [people] → entrar (poco a poco)
filter out
A. VT + ADV [+ impurities] → quitar filtrando
B. VI + ADV [news] → trascender, llegar a saberse
filter through VI + ADV = filter in

filter

[ˈfɪltər]
n
(for liquid)filtre m; (for light)filtre m; (in washing machine, car)filtre m
(at traffic lights)flèche f (permettant à une file de voitures de passer)
vt [+ liquid] → filtrer
filter in
vi (= enter gradually) [people] → entrer par petits groupes
to filter into sth [light] → filtrer dans qch
filter through
vi (= arrive) [news, details] → filtrer
to filter through to sb (= reach) → filtrer jusqu'à qnfilter cigarette ncigarette f à bout filtre, cigarette f filtrefilter coffee ncafé m filtrefilter lane n (British) (at traffic lights)file f (matérialisée sur la chaussée)filter light n (on traffic light)flèche f (de feux de signalisation)filter paper npapier m filtrefilter tip nbout m filtre

filter

n
Filter m; (Phot, Rad, Mech) → Filter nt or m
(Brit, for traffic) → grüner Pfeil (für Abbieger)
vt liquids, airfiltern; sunlightdurchschimmern lassen; informationvorsortieren
vi
(light)durchscheinen, durchschimmern; (liquid, sound)durchsickern
(Brit Aut) → sich einordnen; to filter to the leftsich links einordnen

filter

:
filter bag
nKaffeefilter m
filter bed
nKlärbecken nt
filter coffee
nFilterkaffee m
filter lane
n (Brit) → Spur fzum Einordnen, Abbiegespur f
filter paper
nFilterpapier nt
filter tip
nFilter m
filter-tipped
adj filter cigaretteFilterzigarette f

filter

[ˈfɪltəʳ]
1. nfiltro
2. vtfiltrare
3. vi to filter to the left (Aut) → immettersi nella corsia di svincolo
filter in filter through vi + adv (news) → trapelare

filter

(ˈfiltə) noun
1. a strainer or other device through which liquid, gas, smoke etc can pass, but not solid material. A filter is used to make sure that the oil is clean and does not contain any dirt; (also adjective) filter paper.
2. a kind of screening plate used to change or correct certain colours. If you are taking photographs in sun and snow, you should use a blue filter.
verb
1. (of liquids) to (become) clean by passing through a filter. The rain-water filtered into a tank.
2. to come bit by bit or gradually. The news filtered out.
ˌfilter-ˈtip noun
(a cigarette with) a filter.

filter

جِهَاز تَرْشِيح, يُصَفِّي filtr, filtrovat filter, filtrere Filter, filtern φιλτράρω, φίλτρο filtrar, filtro suodatin, suodattaa filtre, filtrer filter, filtrirati filtrare, filtro 濾過する, 濾過器 거르다, 필터 filter, filteren filter, filtrere filtr, przefiltrować filtrar, filtro фильтр, фильтровать filter, filtrera เครื่องกรอง, กรอง filtre, süzmek cái lọc, lọc 过滤, 过滤器

fil·ter

n. filtro;
v. filtrar;
to ___ throughfiltrarse.

filter

n filtro; inferior vena cava — filtro de la vena cava inferior; vt filtrar