Word Finder - filter

definition

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.

definition

Electronics or software that separates unwanted signals (for example noise) from wanted signals or that attenuates selected frequencies.

definition

Any item, mechanism, device or procedure that acts to separate or isolate.

example

He runs an email filter to catch the junk mail.

definition

Self-restraint in speech.

example

He's got no filter, and he's always offending people as a result.

definition

A non-empty upper set (of a partially ordered set) which is closed under binary infima (a.k.a. meets).

example

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.

definition

To sort, sift, or isolate.

example

This strainer should filter out the large particles.

definition

To diffuse; to cause to be less concentrated or focused.

example

The leaves of the trees filtered the light.

definition

To pass through a filter or to act as though passing through a filter.

example

The water filtered through the rock and soil.

definition

To move slowly or gradually; to come or go a few at a time.

example

The crowd filtered into the theater.

definition

To ride a motorcycle between lanes on a road

example

I can skip past all the traffic on my bike by filtering.

Her words escaped before she thought to filter them.

It is washed by ejecting a jet of water, ammonia or other prescribed liquid on to the side of the filter paper until the paper is nearly full.

Dean breathed deeply as he watched the late afternoon sun filter through the curtains.

The filter then becomes an endless source of calm, clean air.

Place the rinsed seeds on a coffee filter or paper towel to dry.

The pipes to the oil cooler come off near the filter housing.

But whatever merits they had as clarifiers of turbid water, the advent of bacteriology, and the recognition of the fact that the bacteria of certain diseases may be water-borne, introduced a new criterion of effectiveness, and it was perceived that the removal of solid particles, or even of organic impurities (which were realized to be important not so much because they are dangerous to health per se as because their presence affords grounds for suspecting that the water in which they occur has been exposed to circumstances permitting contamination with infective disease), was not sufficient; the filter must also prevent the passage of pathogenic organisms, and so render the water sterile bacteriologically.

In addition, it has a washable air filter and a timer that can be set for 2 to 4 hours.

In the case of this pair of metals, or indeed of any metallic alloy, we cannot see the crystals forming, nor can we easily filter them off and examine them apart from the liquid, although this has been done in a few cases.

The sand, which is nominally the filter, has interstices about thirty times as wide as the largest dimensions of the larger microbes; and the reason why these, and, still more, why organisms which were individually invisible under any magnifying power, and could only be detected as colonies, were arrested, was not understood.

In process of time it became clear, however, that the worse the condition of a filter bed, in the then general acceptation of the term, the better it was as a microbe filter; that is to say, it was not until a fine film of mud and microbes had formed upon the surface of the sand that the best results were obtained.

Yet it cannot be too constantly urged that such filtration depends for its comparative perfection upon the surface film; that this surface film is not present when the filter is new, or when its materials have been recently washed; that it may be, and very often is, punctured by the actual working of the filters, or for the purpose of increasing their discharge; and that at the best it must be regarded as an exceedingly thin line of defence, not to be depended upon as a safeguard against highly polluted waters, if a purer source of supply can possibly be found.

In the best filters an automatic arrangement for the measurement of the supply to each separate filter, and for the regulation of the quantity within certain limits, is adopted, and the resistance at outflow is so arranged that not more than a certain head of pressure, about 22 ft., can under any circumstances come upon the surface film, while a depth of several feet of water is maintained over the sand.

It is essential that during the working of the filter the water should be so supplied that it will not disturb the surface of the sand.

From these facts it is clear that, other things being the same, the best position for the strainers and filter beds is as close as possible to the reservoir.

Sand filtration, even when working in the best possible manner, falls short of the perfection necessary to prevent the passage of bacteria which may multiply after the filter is passed.

In the laboratory of Pasteur probably the first filter which successfully accomplished this object was produced.

The grease filter is designed to last the length of the Kenmore microwave if it is properly taken care of.

It also has an air filter that is washable.

The water used to create the steam is poured into a separate tank where an anti-calcium filter prevents calcium buildup that's often found in other steam irons.

Type G/N AirClean Filter Bags are used for both S2 and S5 models.

Type U AirClean Filter Bag uses Miele's nine layer design and has an auto-seal closure that closes as soon as it is removed from the vacuum.

To maintain peak performance, the air filter should be cleaned every two weeks or more often depending on the indoor air quality of your home.

You can filter your selection and show only the shoes that are less than $40 though.

When a filter has been emptied, and is being re-charged, the water should be introduced from a neighbouring filter, and should pass upwards in the filter to be charged, until the surface of the sand has been covered.

It would appear to be impossible with any water that requires filtration to secure that the first filtrate shall be satisfactory if filtration begins immediately after 'a filter is charged; and if the highest results are to be obtained, either the unfiltered water must be permitted to pass extremely slowly over the surface of the sand without passing through it, or to stand upon the sand until the surface film has formed.

It has been proposed, on the other hand, to allow the filter to act slowly until the surface film is formed, and to discard the first effluent.

When the surface film has once been formed, and the filter has begun its work, it should continue without interruption until the resistance of that film becomes too great to permit of the necessary quantity of water being passed.

This process may be repeated many times until the thickness of the fine sand is reduced to about 18 in., when the filter bed should be restored to its full thickness.

It is checked even by fine copper wire-gauze strainers, and where the water passes through sand-filter beds in the course of an aqueduct, the growth, though very great between the reservoir and the filter beds, is almost absent between the filter beds and the town.

It is then allowed to stand twenty-four hours, filtered, washed with dilute ammonia, dried, ignited to constant weight and weighed, the filter paper being incinerated separately after moistening with nitric acid.

The water leaves the filter through a closet flange in the side of a barrel.

For more than two centuries they had remained prudently entrenched behind the earthworks that extended from Cologne to Ratisbon (Regensburg); but the intestine feuds which prevailed among the barbarians and were fostered by Rome, the organizatipn under bold and turbulent chiefs of the bands greedy for booty, the pressing forward on populations already settled of tribes in their rear; all this caused the Germanic invasion to filter by degrees across the frontier.

This process is now shortened by filtering oils through filter presses, or otherwise brightening them, e.g.

Emergency lighting glowed along the walls, and the strange silhouettes of workout machines made her pause and wait for her night vision to filter out machine from potential attacker.

The Wiener-Hopf equation is derived as the optimum receive filter, illustrated with applications including adaptive filtering.

Tank pumps which can filter your aquarium better than any other aquarium pumps.

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Low Pass Filter This lets through the lower frequencies and attenuates the higher frequencies.

In the laminar flow bench, clean air is introduced through a full HEPA filter wall, generally at the back.

On the case of the filter are two external, easily changeable, fuses in bayonet fixings.

Float drains operate by continuously opening and closing to allow liquid condensate to leave the filter.

It is an ideal food for all filter feeders such as Fan worms, sponges soft corals and many more.

We are delighted to see the successful culmination of those efforts with the launch of ICRA filter.

The High pass filter cutoff controls the longest temporal period that you will allow.

A filter helps to remove dust and pet dander from the air as well.

In this approach we use differential calculus and differential geometry both to filter and analyze multi-dimensional images.

The polarizing filter prevents false switching with shiny objects.

Now press the Enable this rule button to activate the spam filter.

Euro 4 emission compliant, it is fitted with a particulate filter.