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The Collaborative International Dictionary
Infiltration

Infiltration \In`fil*tra"tion\, n. [Cf. F. infiltration.]

  1. The act or process of infiltrating, as of water into a porous substance, of a fluid into the cells of an organ or part of the body, or of persons into a hostile organization.

  2. The substance which has entered the pores or cavities of a body.
    --Addison.

    Calcareous infiltrations filling the cavities.
    --Kirwan.

    Fatty infiltration. (Med.) See under Fatty.

    Infiltration gallery, a filter gallery.

Douglas Harper's Etymology Dictionary
infiltration

early 15c., "a knitting together," noun of action from infiltrate. In physics, from 1796. Figurative sense of "a passing into" (anything immaterial) is from 1840; military sense of "stealthy penetration of enemy lines" dates from 1930.

Wiktionary
infiltration

n. 1 The act or process of infiltrate, as of water into a porous substance, or of a fluid into the cells of an organ or part of the body. 2 The substance which has entered the pores or cavities of a body. 3 The act of entering a physical location and/or organization secretly.

WordNet
infiltration
  1. n. a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection)

  2. the slow passage of a liquid through a filtering medium; "the percolation of rainwater through the soil"; "the infiltration of seawater through the lava" [syn: percolation]

Wikipedia
Infiltration

Infiltration may refer to:

Infiltration (hydrology)

Infiltration is the process by which water on the ground surface enters the soil. Infiltration rate in soil science is a measure of the rate at which soil is able to absorb rainfall or irrigation. It is measured in inches per hour or millimeters per hour. The rate decreases as the soil becomes saturated. If the precipitation rate exceeds the infiltration rate, runoff will usually occur unless there is some physical barrier. It is related to the saturated hydraulic conductivity of the near-surface soil. The rate of infiltration can be measured using an infiltrometer.

Infiltration (medical)

Infiltration is the diffusion or accumulation (in a tissue or cells) of substances not normal to it or in amounts in excess of the normal. The material collected in those tissues or cells is called infiltrate.

Infiltration (HVAC)

Infiltration is the unintentional or accidental introduction of outside air into a building, typically through cracks in the building envelope and through use of doors for passage. Infiltration is sometimes called air leakage. The leakage of room air out of a building, intentionally or not, is called exfiltration. Infiltration is caused by wind, negative pressurization of the building, and by air buoyancy forces known commonly as the stack effect.

Infiltration (video gamer)

Lee Seon-woo (born 23 March 1985), known as Infiltration, is a professional electronic sports player from Seoul, South Korea, specializing in fighting games. Lee is a four-time Evolution Championship Series (EVO) champion; winning Super Street Fighter IV Arcade Edition v2012 in 2012, Street Fighter X Tekken in 2012 and 2013, and Street Fighter V in 2016. Lee stated that he does not have a main or sub character and that he is skilled with majority of the roster in Ultra Street Fighter IV. In Street Fighter X Tekken, Lee plays Jin and Alisa. In Street Fighter V, he plays Nash.

Usage examples of "infiltration".

Unaccountably, during World War II the Marines did not consider using dogs until after Guadalcanal, where canines, with their extraordinary sense of smell, could conceivably provide an excellent defense against the night infiltration by the Japanese.

You will depart immediately for Bayou-all, and rely on Squire Gooch to effect your infiltration among the Cajuns.

However these infiltrations went deeper than ordinary augmentation circuitry, seeking out the memory centres to mate with neurofibrillae inside their clustered cells.

In the late predynastic and the early dynastic periods, when the great development began, this primitive race had become modified by an infiltration of broad-headed people from the north.

Lebanon, the CIA, with all its power and resources, spy satellites, intelligence and infiltration, has never been able to discover where a semiliterate, ragtag band of terrorists was holding them.

Flowers Detection is convinced that infiltration of other organisations is a requirement of The Widows Club charter.

Sappers had already noted the positions of the visual detectors, and the Skink infiltration routes avoided them.

Like electronic border police, intercept operators manned 100 positions in a windowless operations building, listening for indications of infiltration and guerrilla activity.

A-4 began getting indications of something larger than the usual infiltration or harassment taking place across the border.

The tattoos which he had applied during his infiltration of the Bloater Skyjacks were gone now, but there were fine whitish trails where they had been, despite the patient ministrations which had been visited upon him in reefersleep.

It might herald a determined infiltration of the area which would almost certainly I'e followed by a campaign to politicize the local black population, with the resulting protest rallies and boycotts of the bus line and white-owned businesses, and all the other trouble whipped up by the agitators of the African National Congress and the newly formed Pan Africanist Congress.

With Lamotien infiltration and technology, Yaxa flight and trained warriors, aided, perhaps, by bases and personnel in Dasheen, we can take the Qasada and the Xoda, our two major problems.

Fortier was required to absent himself for a period, in the search's middle, to help facilitate Southwest ops, the infiltration of that relative of the auteur felt most strongly (according to Marathe) to have knowledge or possession of a duplicable copy.

If a user accesses a page or receives an e-mail containing this code, infiltration begins .

This area was supposedly safe from infiltration, and there had been no artillery fire from the Flenserists for hours.