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TOEFL IELTS BNC: 3576 COCA: 4370
filter
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noun [C] /ˈfɪltə(r)/
singularfilter
pluralfilters
  1. 1
    science an object or piece of equipment that allows you to remove solid parts that are not wanted from a liquid or gas 过滤器

    a water filter 滤水器

     Synonyms and related words
    Equipment used in scientific research: accelerator, beaker, bell jar...
  2. 2
    a glass or plastic object that you put on a camera to change the colour or amount of light that passes through the lens （照相机的）滤色镜，滤光器
     Synonyms and related words
    Cameras and photographic equipment: analogue camera, aperture, body camera...
  3. 3
    computing a computer program that prevents some types of information from appearing on your computer when you search the Internet 过滤程序
     Synonyms and related words
    Computer programs and systems: add-on, applet, architecture...
  4. 4
    a filter tip （烟头上的）过滤嘴
     Synonyms and related words
    Tobacco, cigarettes, cigars and pipes: baccy, bidi, bong...
  5. 5
    British a traffic light that gives a separate signal to traffic turning in a particular direction （指示车辆转弯的）分流指示灯
     Synonyms and related words
    Road and traffic signals and crossings: advanced green, Belisha beacon, box junction...
  6. From our crowdsourced Open Dictionary
    6
    an app that allows you to decorate and alter photographs on social media

    If you thought Instagram had the filter market on lockdown, think again.

    Submitted from United Kingdom on 23/01/2019
     
  7. From our crowdsourced Open Dictionary
    7
    have no filter to say whatever you think

    She has no filter, she says whatever comes into her head.

    Submitted from United Kingdom on 23/01/2019
     
filter
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verb /ˈfɪltə(r)/
present tense
I/you/we/theyfilter
he/she/itfilters
present participlefiltering
past tensefiltered
past participlefiltered
  1. 1
    [I] if light or sound filters into a place, only a little of it enters that place （光线或声音）透过
    filter through/in/into etc :

    The August sunlight filtered in through the blinds. 8月的阳光透过百叶窗照射进来。

    The noise of the traffic filtered through the heavy curtains. 车辆的噪声透过厚重的窗帘传进来。

     Synonyms and related words
    What light can do: reflect, flood, fade...
     Synonyms and related words
    What sound can do and changing sounds: amplify, reverberate, fade...
  2. 2
    [I] if news or information filters out or through to people, they receive it gradually or after a period of time （消息或情报）走漏，慢慢传开
    filter through/out/back etc :

    News of the decision filtered out to reporters. 有关这个决定的消息慢慢传到了记者们那里。

    These new ideas have not yet filtered down to sales staff. 这些新想法还没有传到销售人员那里。

     Synonyms and related words
    To be, or to become known: come out, get around, leak out...
  3. 3
    [T] to pass something through a filter to remove particular things contained in it 过滤

    Everything we download from the Internet is automatically filtered through our virus software. 我们从因特网上下载的所有东西杀毒软件都会自动进行过滤。

     Synonyms and related words
    To remove something: remove, sweep away, take off...
  4. 4
    [I] British if traffic filters somewhere, it turns right or left when a separate traffic light gives it the signal to go （车辆）看到分流指示灯的信号后转弯

    Most of the cars filtered off to the right. 大多数汽车看到分流指示灯的信号后向右转弯。

     Synonyms and related words
    Traffic movements and traffic jams: back up, bottleneck, bumper-to-bumper...
  5. 5
    [I] if people filter somewhere, they gradually go there 慢慢走进
    filter in/into/out etc :

    People began to filter into the theatre. 人们开始慢慢走进电影院。

     Synonyms and related words
    To go somewhere, or to move in a particular direction: head, go, progress...
  6. From our crowdsourced Open Dictionary
    6
    to use a filter on an image

    The woman showed him the heavily filtered image on her profile and said: 'I want to look like that'.

    Submitted from United Kingdom on 23/01/2019
     

phrasal verbs

TOEFL IELTS BNC: 3576 COCA: 4370
TOEFL IELTS BNC: 3576 COCA: 4370
filter

verb

filter ♦︎ purify ♦︎ refine ♦︎ strain ♦︎ sieve ♦︎ siftThese words all mean to separate sth from sth else, especially a solid from a liquid or larger solids from smaller solids. 这些词均表示过滤、筛。PATTERNS AND COLLOCATIONS 句型和搭配◆to filter / strain / sieve / sift sth into sth◆to filter / strain / sieve sth through sth◆to filter / purify air / water◆to refine / sieve / sift sugar◆to sieve / sift flour◆to be finely sieved / sifted■ filter [transitive] to pass a substance or light through a special device, especially to remove sth that is not wanted 过滤（物质或光线）◆All drinking water must be filtered.所有饮用水必须经过过滤。◆Use a sunblock that filters UVA effectively.使用能有效滤掉长波紫外线的防晒霜。◆The air was improving as the recyclers filtered out the smoke.由于循环净化器过滤掉了烟雾，空气质量正在改善。■ purify ˈpjʊərɪfaɪ; NAmE ˈpjʊrɪfaɪ [transitive] to make sth pure by removing substances that are dirty, harmful or not wanted 使洁净；净化◆One tablet will purify a litre of water in 10 minutes.一片即可在10分钟内净化1升水。◆House plants can help to purify the air.室内盆栽有助于净化空气。▸ purification ˌpjʊərɪfɪˈkeɪʃn; NAmE ˌpjʊrɪfɪˈkeɪʃn

noun

 [uncountable] ◆a water purification plant滤水厂■ refine rɪˈfaɪn [transitive] to make a substance pure by taking other substances out of it, especially as part of an industrial process 精炼，提炼，去除杂质（尤指作为一道工序）◆The process of refining oil produces several useful chemicals.炼油的过程会产生几种有用的化学品。■ strain [transitive] to pour food or another substance through sth with very small holes in it, for example a sieve, in order to separate the solid part from the liquid part 滤，滤掉（多余的水分）◆Use a colander to strain the vegetables.把蔬菜放在滤器里控控水。◆Strain off any excess liquid.滤掉多余的水分。■ sieve sɪv [transitive] to put sth through a sieve 筛；过筛；滤◆Liquidize or sieve half the soup and return it to the pot.把一半的汤打成浓汁或者滤一下，再倒回锅里。ⓘ A sieve is a tool for separating solids from liquids or larger solids from smaller solids, made of a wire or plastic net attached to a ring. The liquid or small pieces pass through the net but the larger pieces do not. * sieve指筛子、笊篱、漏勺等滤器。■ sift [transitive] to put flour, sugar or some other fine substance through a sieve or sifter 筛（面粉、糖或其他颗粒较细的物质）◆Sift the flour, baking powder and salt into a bowl.把面粉、发酵粉和盐筛到碗里。ⓘ In American English a sifter is a small sieve used especially for sifting flour. 在美式英语中，sifter尤指面粉筛子。

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