Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The act or process of infiltrating.
  • n. The state of being infiltrated.
  • n. Something that infiltrates.

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from the GNU version of the Collaborative International Dictionary of English

  • n. 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.
  • n. The substance which has entered the pores or cavities of a body.

from The Century Dictionary and Cyclopedia

  • n. The act or process of infiltrating.
  • n. In pathology, a morbid condition of any portion of tissue produced by the accumulation in it of substances introduced from without: distinguished from degeneration, where the substance abnormally present is produced from the tissue itself through faulty metabolism.
  • n. That which infiltrates; a fluid, or matter carried by a fluid, which enters the pores or cavities of a body.
  • n. In geology, the introduction of water into porous or open-textured rock. The term is specially employed in the discussion of ore-deposits to describe the introduction of new minerals in solution.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the slow passage of a liquid through a filtering medium
  • n. a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection)

Etymologies

Sorry, no etymologies found.

Examples

  • These kinds of solutions may not work everywhere because infiltration is influenced by surficial geology, but it's an approach worth considering when cottages are built.

    Report Card Gives Low Marks to City Council Members « PubliCola

  • This should reduce any cold-air infiltration from the basement and is more practical than attempting to insulate the entire basement ceiling, which usually contains a maze of ducts or pipes from a central heater, water-heater pipes, electrical wiring, and bridging to help strengthen the joists.

    Do it yourself

  • Secret Invasion Saga traces the origins of the Skrull infiltration from the Elektra replacement to the Skrull†™ s very first visit to Earth.

    Secret Invasion is Here! | Major Spoilers - Comic Book Reviews and News

  • The external walls, floor and roof are insulated to a high standard and air infiltration is minimised.

    Edge House: Mobius Architects Creates an Oddity With Its Creativity

  • After all, infiltration is a tactic the Others have used before, (well, before to us, if you see what I mean).

    The Tail Section » Lost Spoiler - “Man Behind the Curtain”

  • The word infiltration in and of itself would suggest that someone is trying to get something or spying of some sort, is there not?

    CNN Transcript Oct 16, 2009

  • However, Peruvian Spanish (or Castellano as they called the language there) has infiltration from the native languages like Quechua, much like Mexican Spanish has from the native languages, especially Nahuatl.

    Tu preterite form

  • I think this ritual invocation of Syria in connection with infiltration is just a way of attempting to intimidate and bully Syria, which some in the Bush administration would like to topple.

    1000 words aren't needed...

  • As Operation Claymore was to be a long-term infiltration rather than a quick hit we didn't want to go in as heavies.

    Both Sides of the Fence -A Life Under Cover

  • He said although police sometimes used specialised operations like Rooikat to stop crime, in cases of firearm syndication which he described as "closed crime", police used long-term infiltration methods to crack such syndicates.

    ANC Daily News Briefing

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