Infiltration may refer to:
Science, medicine, and engineering
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Infiltration (hydrology)
Infiltration is the process by which water on the ground surface enters the soil. It is commonly used in both hydrology and soil sciences. The infiltration capacity is defined as the maximum rate of infiltration. It is most often measured in me ...
, downward movement of water into soil
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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 ...
, a heating, ventilation, and air conditioning term for air leakage into buildings
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Infiltration (medical) Infiltration is the diffusion or accumulation (in a tissue or cells) of foreign substances in amounts excess of the normal. The material collected in those tissues or cells is called infiltrate.
Definitions of infiltration
As part of a disease p ...
, the diffusion or accumulation of substances or cells not normal to it or in amounts in excess of the normal
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Infiltration/Inflow
Infiltration/Inflow (I/I) causes dilution in sanitary sewers. Dilution of sewage decreases the efficiency of treatment, and may cause sewage volumes to exceed design capacity. Although inflow is technically different from infiltration, it may be d ...
, leakage of groundwater into sanitary sewers
Other uses
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Entryism
Entryism (also called entrism, enterism, or infiltration) is a political strategy in which an organisation or state encourages its members or supporters to join another, usually larger, organization in an attempt to expand influence and expand the ...
, the infiltration by a political organisation of another, usually larger, organisation
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espionage
Espionage, spying, or intelligence gathering is the act of obtaining secret or confidential information ( intelligence) from non-disclosed sources or divulging of the same without the permission of the holder of the information for a tang ...
, using
double agent
In the field of counterintelligence, a double agent is an employee of a secret intelligence service for one country, whose primary purpose is to spy on a target organization of another country, but who is now spying on their own country's organ ...
s to join an enemy organization
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Infiltration tactics
In warfare, infiltration tactics involve small independent light infantry forces advancing into enemy rear areas, bypassing enemy frontline strongpoints, possibly isolating them for attack by follow-up troops with heavier weapons. Soldiers ...
, tactics developed by the German army in early 1915 that broke the trench-warfare stalemate on the western front
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Urban exploration, exploring parts of towns, etc. which are normally off-limits
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''Infiltration'' (zine), a popular urban exploration zine/website created by Jeff Chapman (Ninjalicious)
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Seon-Woo Lee
Lee Seon-woo, known as Infiltration, is a professional esports player from Seoul, South Korea, specializing in fighting games. Lee is a six-time Evolution Championship Series (EVO) champion; winning '' Super Street Fighter IV Arcade Edition ...
(born 1985), professional electronic sports players, specializing in fighting games, who plays under the alias Infiltration
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''Infiltration'' (2017 film), a Canadian film
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Infiltration (2022 film), Russian war drama film
See also
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Infiltrator (disambiguation)
{{disambiguation