filter
noun · verbA2Định nghĩa theo từ loại
Danh từ
noun- 1.
A device which separates a suspended, dissolved, or particulate matter from a fluid, solution, or other substance; any device that separates one substance from another.
- 2.
Electronics or software that separates unwanted signals (for example noise) from wanted signals or that attenuates selected frequencies.
- 3.
Any item, mechanism, device, or procedure that acts to separate or isolate.
He runs an email filter to catch the junk mail.
- 4.
(figuratively)(figurative) Self-restraint in speech.
He's got no filter, and he's always offending people as a result.
- 5.
(mathematics, order theory) A non-empty upper set (of a partially ordered set) which is closed under binary infima (a.k.a. meets).
The collection of cofinite subsets of ℝ is a filter under inclusion: it includes the intersection of every pair of its members, and includes every superset of every cofinite set.
If (1) the universal set (here, the set of natural numbers) were called a "large" set, (2) the superset of any "large" set were also a "large" set, and (3) the intersection of a pair of "large" sets were also a "large" set, then the set of all "large" sets would form a filter.
- 6.
(photography) A translucent object placed in the light path of a camera to remove certain wavelengths (colors), or a computer program that simulates such an effect.
- 7.
(social media) An appearance-altering digital image effect.
Động từ
verb- 1.
(transitive)To sort, sift, or isolate.
This strainer should filter out the large particles.
- 2.
(transitive)To diffuse; to cause to be less concentrated or focused.
The leaves of the trees filtered the light.
- 3.
(intransitive)To pass through a filter or to act as though passing through a filter.
The water filtered through the rock and soil.
- 4.
(intransitive)To move slowly or gradually; to come or go a few at a time.
The crowd filtered into the theater.
- 5.
(intransitive)To ride a motorcycle between lanes on a road
I can skip past all the traffic on my bike by filtering.
- 6.
(derogatory, intransitive, slang)(intransitive, derogatory, fandom slang) To be discouraged where a connoisseur or hardcore fan would not.
Most people get filtered by that episode.
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Nguồn gốc từ
ine-pro From Middle English filtre, from filtrum (compare also feutre), from *filtir, from *felt. See felt. phin.