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filter down

1. (literally) Of a liquid, to slowly seep down through lower substrate levels. The company bottles rainwater that has filtered down through seven layers of volcanic rock, purifying it and enriching it with minerals.
2. (by extension) Of information, resources, communication, etc., to move slowly and in small amounts down to lower levels of people in an organization, population, or group. It always takes a dog's age for any important company information to filter down to me and the other interns. The government has approved a staggering $200 billion stimulus package, but some experts warn it could be years before that money filters down to individuals and smaller businesses.
See also: down, filter

filter up

Of information, resources, communication, etc., to move slowly and in small amounts up to higher levels of people in an organization, population, or group. Local think-tanks are developing new, pragmatic strategies to deal with the burgeoning housing crisis, but they are unlikely to filter up to the agenda of state lawmakers anytime soon.
See also: filter, up

filter in

 (to some place)
1. Lit. to leak or seep into some place. The smell of bacon cooking filtered into his room and made him wake up. The smoke filtered in and burned our eyes.
2. Fig. [for people] to come into a place, a few at a time, over a period of time. One by one, the guests filtered into the room. They filtered in and started on the snacks.
See also: filter

filter something out of something

 and filter something out
to remove something from a fluid by running it through a filter. We filtered the odors out of the water and made it fit to drink. I'm glad you filtered out the odor.
See also: filter, of, out

filter through (something)

to pass or seep through something. The water filtered through the coffee grounds and dripped into the pot. The clear water filtered through and left the sand behind.
See also: filter

filter down

To pass or spread downward from an upper level to lower levels, as through a filter: The information slowly filtered down from management to the hourly employees.
See also: down, filter

filter out

To prevent something from passing through, being communicated, or being perceived: My new glasses filter out ultraviolet rays. These headphones filter unwanted noise out.
See also: filter, out

filter through

To be allowed to pass through something or to find a way through something, especially an obstacle: The sunlight filtered through the thin curtains.
See also: filter

bozo filter

n. a setting on an internet email reader that will filter out selected annoying people. (Refers to bozo, a jerk.) Welcome to my bozo filter, jerk!
See also: bozo, filter
References in periodicals archive ?
Company scientists filter some surface-water samples that have a lot of sediment, but they've never found radioactive contaminants above the drinking-water limits in filtered or unfiltered samples, Costa said.
In respect to mechanical properties, tensile specimens machined from filtered and unfiltered castings revealed no difference at all.
Mayberry USA chose the iPrism filtered appliance solution over all others due to its technical superiority and simple plug-and-play application, a decision based on extensive market research.
Mayberry USA is a national filtered ISP, bringing safe Internet access to families across America.
Mayberry USA also offers filtered chat rooms, filtered e-mail, coast-to-coast Internet access, 56.
To deliver filtered service, Galaxy Internet has implemented leading edge proxy-server technology that blocks undesired sites at the ISP level.
Galaxy Internet's filtered content service accommodates both children and adult Internet users.
This agreement will enable Inktomi to offer an enhanced filtered search feature to its customer base of Internet portals and destination sites.
N2H2's Internet content filtering service combines advanced proprietary technology and a human review system to deliver safe, filtered Internet access as determined by its customers.
N2H2's product offerings include Bess-brand filtering and the Searchopolis educational portal with filtered search for schools, and Enterprise-level filtering, caching and filtered search solutions for businesses and ISPs.
In addition to filtered Web browsing, WebSurfer users will also have direct, on-screen access to Searchopolis, www.
To switch to filtered water for drinking or cooking purposes, just touch the button on the faucet wand.
Filtered drinking water is dispensed through a separate channel so that it never mixes with unfiltered water.