Definition, Meaning, Synonyms & Anagrams | English word FILTER

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Definitions of FILTER

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. (figurative) self-restraint in speech.
5. (mathematics, order theory) A non-empty upper set (of a partially ordered set) which is closed under binary infima (a.k.a. meets).
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. (transitive) To sort, sift, or isolate.
8. (transitive) To diffuse; to cause to be less concentrated or focused.
9. (intransitive) To pass through a filter or to act as though passing through a filter.
10. (intransitive) To move slowly or gradually; to come or go a few at a time.
11. (intransitive) To ride a motorcycle between lanes on a road
12. A German surname from German.

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Examples of Using FILTER in a Sentence

• It may refer more specifically to two subcategories: Passband bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a band-pass filter, a communication channel, or a signal spectrum.
• This means that for every feature that one sees in the frequency response of the analog filter, there is a corresponding feature, with identical gain and phase shift, in the frequency response of the digital filter but, perhaps, at a somewhat different frequency.
• An Internet filter is software that restricts or controls the content an Internet user is capable to access, especially when utilized to restrict material delivered over the Internet via the Web, Email, or other means.
• Filter (large eddy simulation), a mathematical operation intended to remove a range of small scales from the solution to the Navier-Stokes equations.
• Filtration is a physical separation process that separates solid matter and fluid from a mixture using a filter medium that has a complex structure through which only the fluid can pass.
• In digital signal processing, linear prediction is often called linear predictive coding (LPC) and can thus be viewed as a subset of filter theory.
• In mathematics, a filter or order filter is a special subset of a partially ordered set (poset), describing "large" or "eventual" elements.
• Subtractive synthesis is a method of sound synthesis in which overtones of an audio signal are attenuated by a filter to alter the timbre of the sound.
• This implies that any filter that properly contains an ultrafilter has to be equal to the whole poset.
• Other good sources are fresh apple cider and unpasteurized beer that has not been filter sterilized.
• The same phase of the input signal is also applied to both phase detectors, and the output of each phase detector is passed through a low-pass filter.
• A weighting filter is used to emphasize or suppress some aspects of a phenomenon compared to others, for measurement or other purposes.
• In signal processing, a digital filter is a system that performs mathematical operations on a sampled, discrete-time signal to reduce or enhance certain aspects of that signal.
• In signal processing, group delay and phase delay are functions that describe in different ways the delay times experienced by a signal’s various sinuoidal frequency components as they pass through a linear time-invariant (LTI) system (such as a microphone, coaxial cable, amplifier, loudspeaker, communications system, ethernet cable, digital filter, or analog filter).
• Insertion loss is a figure of merit for an electronic filter and this data is generally specified with a filter.
• An interference filter, dichroic filter, or thin-film filter is an optical filter that reflects some wavelengths (colors) of light and transmits others, with almost no absorption for all wavelengths of interest.
• For example, a radio receiver contains a bandpass filter to select the frequency of the desired radio signal out of all the radio waves picked up by its antenna.
• In the mid-20th century, supervision signals on long-distance trunks in North America were primarily in-band, for example at 2600 Hz, necessitating a notch filter to prevent interference.
• A stopband is a band of frequencies, between specified limits, through which a circuit, such as a filter or telephone circuit, does not allow signals to pass, or the attenuation is above the required stopband attenuation level.
• At first glance, this technique can be viewed as subtractive synthesis based on a feedback loop similar to that of a comb filter for z-transform analysis.
• They are sessile filter feeders that are bound to the seabed, and are one of the most ancient members of macrobenthos, with many historical species being important reef-building organisms.
• They are filter feeders and eat large quantities of zooplankton, which they gather with their open mouths as they swim.
• A low-pass filter is a filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency.
• A high-pass filter (HPF) is an electronic filter that passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency.
• Greenfield filter, an inferior vena cava filter that is surgically placed to prevent pulmonary emboli.

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