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filterer

 - 6 dictionary results

fil⋅ter

  [fil-ter]
Use filterer in a Sentence
–noun
1. any substance, as cloth, paper, porous porcelain, or a layer of charcoal or sand, 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, or for eliminating certain kinds of light rays.
4. Informal. a filter-tipped cigarette or cigar.
5. Photography. a lens screen of dyed gelatin or glass for controlling the rendering of color or for diminishing the intensity of light.
6. Electronics, Physics. a circuit or device that passes certain frequencies and blocks others.
7. Mathematics. a collection of subsets of a topological space, having the properties that the intersection of two subsets in the collection is a subset in the collection and that any set containing a subset in the collection is in the collection.
–verb (used with object)
8. to remove by the action of a filter.
9. to act as a filter for; to slow or partially obstruct the passage of: The thick leaves filtered the sunlight.
10. to pass through or as through a filter.
–verb (used without object)
11. to pass or slip through slowly, as through an obstruction or a filter: Enemy agents managed to filter into the embattled country.
Origin:
1375–1425; late ME filtre < ML filtrum felt, piece of felt used to strain liquids < Gmc; see felt 2

Related forms:
fil⋅ter⋅er, noun

Synonyms:
11. penetrate, sift, seep, trickle, leak.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To filterer
fil·ter   (fĭl'tər)   
n.  

    1. A porous material through which a liquid or gas is passed in order to separate the fluid from suspended particulate matter.

    2. A device containing such a material, especially one used to extract impurities from air or water.

    3. Any of various electric, electronic, acoustic, or optical devices used to reject signals, vibrations, or radiations of certain frequencies while allowing others to pass.

    4. A colored glass or other transparent material used to select the wavelengths of light allowed to reach a photosensitive material.

    1. Any of various electric, electronic, acoustic, or optical devices used to reject signals, vibrations, or radiations of certain frequencies while allowing others to pass.

    2. 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.


[Middle English filtre, from Old French, from Medieval Latin filtrum, of Germanic origin; see pel-5 in Indo-European roots.]
fil'ter·er n., fil'ter·less adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Cultural Dictionary

filter

A computer software program that selectively screens out incoming information.

Note: Spam may be the target of a filter, or parents may use a filter designed to prevent their child's access to pornographic or violent Web pages.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Word Origin & History

filter  (n.)
c.1400, from M.L. filtrum "felt," which was used to strain impurities from liquid, from W.Gmc. *filtiz (see felt). Of cigarettes, from 1908. The verb is from 1576; the fig. sense is from 1830.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: 2filter
Function: verb
Inflected Forms: fil·tered; fil·ter·ing /-t(&-)ri[ng]/
transitivesenses
1 : to subject to the action of a filter
2 : to remove by means of a filter filter intransitive senses
: to pass or movethrough or as if through a filter
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

filter fil·ter (fĭl'tər)
n.

  1. A porous material through which a liquid or gas is passed in order to separate the fluid from suspended particulate matter.

  2. A device containing such a substance.

  3. Any of various electric, electronic, acoustic, or optical devices used to reject signals, vibrations, or radiations of certain frequencies while passing others.

  4. A translucent screen, used in both diagnostic and therapeutic radiology, that permits the passage of rays having desirable levels of energy.

  5. A device used in spectrophotometric analysis to isolate a segment of the spectrum.

v. fil·tered, fil·ter·ing, fil·ters

  1. To pass a liquid or gas through a filter.

  2. To remove by passing through a filter.

  3. To pass through or as if through a filter.

fil'ter·er n.
fil'ter·less adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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