filter (redirected from x-ray filter)

fil·ter  (fltr)

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. Computer Science A program or routine that blocks access to data that meet a particular criterion: a Web filter that screens out vulgar sites.

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. Computer Science To use a filter to block access to (a website or Web content).

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.

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[Middle English filtre, from Old French, from Medieval Latin filtrum, of Germanic origin; see pel-⁵ in Indo-European roots.]

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filter·er n.

filter·less adj.

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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. (Miscellaneous Technologies / Brewing) any of various porous substances built into the mouth end of a cigarette or cigar for absorbing impurities such as tar

4. (Physics / 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. (Miscellaneous Technologies / 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. (Engineering / 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

1. (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

2. (tr) to obtain by filtering

3. (intr foll by through) to pass (through a filter or something like a filter) dust filtered through the screen

4. (intr) to flow slowly; trickle

[C16 filtre from Medieval Latin filtrum piece of felt used as a filter, of Germanic origin; see felt²]

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filter  (fltr)

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 signals with certain properties, such as signals lying in a certain frequency range, to pass while blocking the passage of others. For example, filters on photographic lenses allow only certain frequencies of light to enter the camera, while polarizing filters allow only light polarized along a given plane to pass. Radio tuners are filters that allow frequencies of only a narrow range to pass into an amplification circuit.

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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.

Thesaurus

Noun	1.	filter - 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
Verb	1.	filter - remove by passing through a filter; "filter out the impurities" filter out, filtrate, separate out, strain separate - divide into components or constituents; "Separate the wheat from the chaff"
	2.	filter - pass through; "Water permeates sand easily" permeate, sink in, percolate 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 stream; "water trickled onto the lawn from the broken hose"; "reports began to dribble in" dribble, trickle 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"

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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

sieve, mesh, gauze, strainer, membrane, riddle, sifter a paper coffee filter

Translations

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 N → semáforo m de flecha de desvío
filter paper N → papel 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

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filter [ˈfɪltə^r]

n

(for liquid) → filtre m; (for light) → filtre m; (in washing machine, car) → filtre m

(at traffic lights) → flèche permettant à une file de voitures de passer)f >

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 qn
filter cigarette n → cigarette f à bout filtre, cigarette f filtre
filter coffee n → café m filtre
filter lane n (British) (at traffic lights) → file matérialisée sur la chaussée)f >
filter light n (on traffic light) → flèche de feux de signalisation)f >
filter paper n → papier m filtre
filter tip n → bout m filtre

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filter

n

→ Filter m; (Phot, Rad, Mech) → Filter nt or m

(Brit, for traffic) → grüner Pfeil (für Abbieger)

vt liquids, air → filtern; sunlight → durchschimmern lassen; information → vorsortieren

vi

(light) → durchscheinen, durchschimmern; (liquid, sound) → durchsickern

(Brit Aut) → sich einordnen; to filter to the left → sich links einordnen

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filter:

filter bag

n → Kaffeefilter m

filter bed

n → Klärbecken nt

filter coffee

n → Filterkaffee m

filter lane

n (Brit) → Spur f → zum Einordnen, Abbiegespur f

filter paper

n → Filterpapier nt

filter tip

n → Filter m

filter-tipped

adj filter cigarette → Filterzigarette f

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filter [ˈfɪltəʳ]

1. n → filtro

2. vt → filtrare

3. vi to filter to the left (Aut) → immettersi nella corsia di svincolo

filter in filter through vi + adv (news) → trapelare

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filter

n filter [ˈfiltə]

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. filter; filtreerder جِهاز تَرْشيح цедка filtr; filtrový filter; filter- der Filter, Filter-... φίλτρο filtro filter صافی suodatin filtre מַסנֵן छलनी filter, cjedilo szűrő saringan sía, filter filtro 濾過器 필터 filtras filtrs; filtr- penuras filter filter filtr filtro filtru фильтр filter; filtrový filter filter filter เครื่องกรอง filtre, süzgeç 過濾器 фільтр; цідилко مائع یا گیس سے ٹھوس ذرے وغیرہ کو چھانٹنے کے لیے مسام دار مادہ یا شے máy lọc; cái lọc 过滤器

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. filter مُرَشِّح ألوان филтър filtr filter der Filter φίλτρο filtro filter فیلتر نوری suodin filtre מַסנֵן साफी, फिल्टर filter (za fotoaparat) szűrő filter filter; ljóssía, litsía filtro フィルター (사진) 필터, 여과기 filtras filtrs penapis kleurfilter (lys-/farge)filter filtr filtro filtru светофильтр filter filter filter filter แว่นกรองแสง filtre 濾色鏡, 濾光器 фільтр کسی مخصوص رنگ کو صحیح کرنے کے لۓ استعمال کی جانے والی پٹی kính lọc 滤色镜,滤光器

v

1 (of liquids) to (become) clean by passing through a filter The rain-water filtered into a tank. filtreer يُرَشَّح السائِل прецеждам (pře)filtrovat filtrere durch einen Filter sickern φιλτράρω, φιλτράρομαι filtrar filtreerima, filtreeruma تصفیه کردن suodattaa filtrer לְסַנֵן छाना हुआ filtrirati (át)szűr menyaring sía (út) filtrare 濾過する 여과기로 거르다 filtruoti(s) filtrēt dituras filtreren filtrere, sive filtrować (się) filtrar(-se) a (se) filtra фильтровать filtrovať filtrirati (se) filtrirati filtrera[], sila[] กรองของเหลวให้สะอาด süzmek 過濾 фільтрувати, проціджувати مائع کا مصفی سے صاف ہونا lọc 过滤

2 to come bit by bit or gradually The news filtered out. uitlek يَتَسَرَّب разчувам се постепено pronikat, prosakovat sive; sprede sig durchsickern διαρρέω filtrarse läbi imbuma درز کردن tihkua (s')infiltrer לְהִסתַנֵן धीरे-धीरे आना procuriti kiszivárog merembes síast út filtrare 徐々に知れ渡る (사실, 정보 등이) 서서히 알려지다 prasiskverbti kļūt zināmam; nākt gaismā ditapis filteren sive ut przenikać sair a (se) strecura; a transpira просачиваться presakovať prenikati pročistiti sippra (läcka) ut ค่อย ๆ กรอง yayılmak, sızmak 慢慢傳開 просочуватися; проникати قطرہ قطرہ ٹپکنا lọt ra; tiết lộ ra; thấm 慢慢传开

n filter-ˈtip

(a cigarette with) a filter. filtermondstuk مِرْشَح السيجارَه، فِلتَر цигара с филтър cigareta s filtrem filtercigaret; cigaretfilter das Filtermundstück φίλτρο τσιγάρου (cigarrillo) con filtro, con boquilla filter, filtriga sigaret فیلتر سیگار؛ سیگار فیلتر دار filtteri (à bout) filtre פִּייָה फिल्टरयुक्त सिगरेट cigareta s filterom füstszűrős (cigaretta) filter sígaretta með síu/filter sigaretta col filtro フィルター 담배의 필터 filtras, cigaretė su filtru (cigaretes) filtrs; cigarete ar filtru penapis filtersigaret filtersigarett filtr, papieros z filtrem filtro/ (cigarro com) filtro (ţi­gară cu) filtru сигарета с фильтром cigareta s filtrom filter filter filter[] ส่วนที่เป็นก้นกรองของบุหรี่ filtreli sigara 香煙的濾嘴 цигарка з фільтром فلٹر والا سگریٹ đầu lọc 香烟的过滤咀

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filter → جهاز ترشيح, يُصَفِي filtr, přefiltrovat 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