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filter
2 ENTRIES FOUND:
plural filters
plural filters
Learner's definition of FILTER
[count]
1
: a device that is used to remove something unwanted from a liquid or gas that passes through it滤器
- She smokes cigarettes with filters.她抽过滤嘴香烟。
- a water filter滤水器
2
: a device that prevents some kinds of light, sound, electronic noises, etc., from passing through滤镜；滤声器；滤波器
- He placed a red filter on the camera lens.他把红色滤镜装在照相机的镜头上。
- digital filters that stop high-frequency sounds能阻挡高频声音的数码滤波器
3
computers : software that prevents someone from looking at or receiving particular kinds of material through the Internet过滤软件
- a spam filter [=a program that keeps you from seeing spam or unwanted e-mail]垃圾电子邮件过滤软件
2 filter /ˈfɪltɚ/ verb
filters; filtered; filtering
2 filter
/ˈfɪltɚ/
verb
filters; filtered; filtering
Learner's definition of FILTER
1
[+ object]
a : to pass (something, such as a gas or liquid) through a filter to remove something unwanted过滤
- They've begun filtering their water to remove impurities.他们已经开始将水进行过滤，以去除杂质。
b : to remove (something unwanted) by using a filter用过滤器去除 — often + out — often used figuratively常用作比喻
- a device that filters impurities from water过滤水中杂质的设备
- sunglasses that filter ultraviolet light滤除紫外线的太阳镜
- sunglasses that filter out ultraviolet light滤除紫外线的太阳镜
- The purpose of the first interview is to filter out people who are not good candidates for the job.第一轮面试的目的是筛除不适合这份工作的应聘者。
2
always followed by an adverb or preposition [no object]
a : to move through or into something in small amounts or in a gradual way渗入；透过
- Sunlight filtered through the leaves.阳光透过树叶照射下来。
- His ideas have filtered down to his children.他的想法逐渐影响到了孩子们。
b : to come or go slowly in small groups or amounts缓慢进入；陆续步入
- The crowd filtered into the arena.人群陆续走进表演场。
- The crowd filtered out (of the arena).人群陆续走出（表演场）。
- Early election returns have begun to filter in.初选结果报告开始慢慢传开。
1
a
: a porous article or mass (as of paper or sand) through which a gas or liquid is passed to separate out matter in suspension
b
: an apparatus containing a filter medium
2
a
: a device or material for suppressing or minimizing waves or oscillations of certain frequencies (as of electricity, light, or sound)
b
: a transparent material (such as colored glass) that absorbs light of certain wavelengths or colors selectively and is used for modifying light that reaches a sensitized photographic material
called also color filter
Example Sentences
Noun She smokes cigarettes with filters. He placed a red filter on the camera lens. digital filters that stop high-frequency sounds Verb They've begun filtering their water to remove impurities. a device that filters impurities from water sunglasses that filter ultraviolet light Sunlight filtered through the leaves. His ideas have filtered down to his children. The crowd filtered into the arena. Early election returns have begun to filter in. See More
Recent Examples on the Web
Antonio Planas, NBC News, 15 Sep. 2022 Carpet works like an air filter, collecting our home's dirt and dust. Caitlin Sole, Better Homes & Gardens, 7 Sep. 2022 This particular cryo-EM configuration is unique because of an advanced filter that was added to eliminate some of the background noise in the suspension fluid. Laura Garcia, San Antonio Express-News, 7 Sep. 2022 Residents who see or smell smoke are advised to limit outdoor activities and use an air filter for protection. Hayley Smith, Los Angeles Times, 5 July 2022 An integrated hollow fiber water filter allows hikers to submerge the bottom of the pole in water and drink from the foam handle through a tube. Outside Online, 23 June 2022 Some cream formulas tend to be heavy on the pores, but the texture on this one is featherlight and smooth, thanks to a combination of silica and soft-focus powders that work pretty much like an IRL beauty filter. Ariana Yaptangco, Glamour, 26 Apr. 2022 The city of Summerville in Chattooga County advised residents to boil all water to use for drinking, cooking or preparing baby food after flash flooding at a filter plant. Theresa Waldrop And Haley Brink, CNN, 5 Sep. 2022 Residents of the city of Summerville in Chattooga County were advised to boil water prior to drinking and cooking due to flash flooding at a local filter plant, according to the city's website. Thao Nguyen, USA TODAY, 5 Sep. 2022 Christopher Rugaber, ajc, 13 Sep. 2022 But that data takes time to filter into the government’s measure, which tracks all rents. Christopher Rugaber, Anchorage Daily News, 13 Sep. 2022 Brand materials suggest that Felix Gray's amber lenses are designed to filter away more than 23 times the amount of blue light compared to other options on the market, and are designed with sleep in mind. Zee Krstic, Good Housekeeping, 9 Sep. 2022 Mostly, though, Olsson just wanted to filter out people who aren’t into this style of dating, and stop relying on happenstance to find the right match. WIRED, 4 Sep. 2022 First, it is treated at a waste treatment plant, before being passed through course and fine screens to filter out any debris. Rachel Pannett, Washington Post, 29 Aug. 2022 In Mulheim, Germany, physician Beate Jaeger is adapting a controversial approach called H.E.L.P. apheresis, previously used to filter bad cholesterol from the blood of patients with coronary heart disease. Marla Broadfoot, Smithsonian Magazine, 19 Aug. 2022 In his email to committee members, Appelbaum touted a report from the jail project’s mechanical engineer, Osborn Engineering, describing the air handling and monitoring equipment that would be installed at the new jail to filter out any toxins. Kaitlin Durbin, cleveland, 17 Aug. 2022 Open all blinds and curtains to allow natural light to filter in and make the rooms appear open and inviting. Kristine Gill, Better Homes & Gardens, 16 Aug. 2022 See More
Noun
Jackson health officials have said that those who are pregnant and 5 or younger should use bottled water for drinking and cooking, or an NSF53 filter. Antonio Planas, NBC News, 15 Sep. 2022 Carpet works like an air filter, collecting our home's dirt and dust. Caitlin Sole, Better Homes & Gardens, 7 Sep. 2022 This particular cryo-EM configuration is unique because of an advanced filter that was added to eliminate some of the background noise in the suspension fluid. Laura Garcia, San Antonio Express-News, 7 Sep. 2022 Residents who see or smell smoke are advised to limit outdoor activities and use an air filter for protection. Hayley Smith, Los Angeles Times, 5 July 2022 An integrated hollow fiber water filter allows hikers to submerge the bottom of the pole in water and drink from the foam handle through a tube. Outside Online, 23 June 2022 Some cream formulas tend to be heavy on the pores, but the texture on this one is featherlight and smooth, thanks to a combination of silica and soft-focus powders that work pretty much like an IRL beauty filter. Ariana Yaptangco, Glamour, 26 Apr. 2022 The city of Summerville in Chattooga County advised residents to boil all water to use for drinking, cooking or preparing baby food after flash flooding at a filter plant. Theresa Waldrop And Haley Brink, CNN, 5 Sep. 2022 Residents of the city of Summerville in Chattooga County were advised to boil water prior to drinking and cooking due to flash flooding at a local filter plant, according to the city's website. Thao Nguyen, USA TODAY, 5 Sep. 2022 Verb
But that data takes time to filter into the government's measure, which tracks all rents. Christopher Rugaber, ajc, 13 Sep. 2022 But that data takes time to filter into the government’s measure, which tracks all rents. Christopher Rugaber, Anchorage Daily News, 13 Sep. 2022 Brand materials suggest that Felix Gray's amber lenses are designed to filter away more than 23 times the amount of blue light compared to other options on the market, and are designed with sleep in mind. Zee Krstic, Good Housekeeping, 9 Sep. 2022 Mostly, though, Olsson just wanted to filter out people who aren’t into this style of dating, and stop relying on happenstance to find the right match. WIRED, 4 Sep. 2022 First, it is treated at a waste treatment plant, before being passed through course and fine screens to filter out any debris. Rachel Pannett, Washington Post, 29 Aug. 2022 In Mulheim, Germany, physician Beate Jaeger is adapting a controversial approach called H.E.L.P. apheresis, previously used to filter bad cholesterol from the blood of patients with coronary heart disease. Marla Broadfoot, Smithsonian Magazine, 19 Aug. 2022 In his email to committee members, Appelbaum touted a report from the jail project’s mechanical engineer, Osborn Engineering, describing the air handling and monitoring equipment that would be installed at the new jail to filter out any toxins. Kaitlin Durbin, cleveland, 17 Aug. 2022 Open all blinds and curtains to allow natural light to filter in and make the rooms appear open and inviting. Kristine Gill, Better Homes & Gardens, 16 Aug. 2022 See More Word History
Etymology
Noun
Middle English filtre "felt, felt carpet, piece of felt used as a filter," borrowed from Medieval Latin filtrum "felt cloth, cover or blanket of felt, piece of felt used as a filter," borrowed from *filtir (going back to *filtizō) in a West Germanic language, plural of *filt-, *felt- "felted cloth" — more at felt entry 1
Verb
derivative of filter entry 1
First Known Use
Noun
15th century, in the meaning defined at sense 1a
Verb
1576, in the meaning defined at transitive sense 1
Time Traveler
The first known use of filter was in the 15th century Phrases Containing filter
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