English Explanatory Dictionary

filter

English dictionary entry

Meanings

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.
  4. Self-restraint in speech.
  5. A non-empty upper set (of a partially ordered set) which is closed under binary infima (a.k.a. meets).
  6. 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. An appearance-altering digital image effect.
verb
  1. To sort, sift, or isolate.
  2. To diffuse; to cause to be less concentrated or focused.
  3. To pass through a filter or to act as though passing through a filter.
  4. To move slowly or gradually; to come or go a few at a time.
  5. To ride a motorcycle between lanes on a road
  6. To be discouraged where a connoisseur or hardcore fan would not.
name
  1. A surname from German.

Pronunciation

/ˈfɪltə/ /ˈfɪltɚ/ en-us-filter.ogg

Word forms

filter filters filtering filtered

Etymology

From Middle English filtre, from Medieval Latin filtrum (compare also Old French feutre (“felt; filter”)), from Frankish *filtir, from Proto-West Germanic *felt. See felt. Doublet of phin.

Synonyms

to filter out

Antonyms

ideal

Related words

filtrate filtration filtride

Derived words

alpha-beta filter Bayer filter biofilter bitfilter Bloom filter bogon filter bozo filter Butterworth filter chemofilter clear-filter comb filter diafilter diesel particulate filter dust filter electrofilter filter bank filter bed filter bubble filter cake filter card filter coffee filter down filter-feeder filter feeder filter funnel filtergram filter in turn filter lane filterless filterlike filterman filtermat filter pad filter paper filterplate filterset filter tip filtertop filter tube filter up filterware filtrand filtrate Gabor filter Gooch filter Great Filter haemofilter hemofilter highpass filter interference filter interfilter intrafilter Kalman filter killfilter leukofilter LMS filter microfilter minifilter Mitchell-Netravali filter modal filter
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