infiltration

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infiltration

  • /ɪnfɪlˈtɹeɪʃən/ UK
  • /ˌɪnfəlˈtɹeɪʃən/ Canada, US

Where it comes from

From Middle English infiltracioun, from Medieval Latin infiltrātiōnem, infiltrātiō. By surface analysis, infiltrat(e) + -ion.

noun infiltrations

  1. countable, uncountable 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.
  2. countable, uncountable process by which water on the ground surface enters the soil.
  3. countable, uncountable The substance which has entered the pores or cavities of a body. calcareous infiltrations filling the cavities
  4. countable, uncountable The act of secretly entering a physical location and/or organization. No one should be under any illusions about the objective of the Communist Party leadership: it’s long-term, systematic infiltration of social organisations, media and government. By the time China’s infiltration of Australia is readily apparent, it will be too late.

Thesaurus

Closest in meaning: permeation, permeability, percolation, seepage, filtering, leak, leaching, filtration, leakage, flow, inflow, underground, penetration, impregnation, gunman, invasion

Translations

Every language

noun act or process of infiltrating

Españolfiltración
हिन्दीघुसपैठ ghuspaiṭh
Françaisinfiltration
DeutschInfiltration

noun substance

Españolfiltración
Françaisinfiltration

noun entering secretly

Españolinfiltración
한국어잠입 jamip
日本語潜入 sennyū
हिन्दीघुसपैठ ghuspaiṭh
Françaisinfiltration
DeutschInfiltration
Italianoinfiltrazione
Ελληνικάδιείσδυση dieísdysi

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Cite this
MLA

"infiltration." Wiktionary, via Micwyn, micwyn.com/word/infiltration. Accessed 6 Nov. 2026.

APA

infiltration. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/infiltration

Chicago

"infiltration." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/infiltration.

BibTeX
@misc{infiltration_2026,
  title = {infiltration},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/infiltration},
  urldate = {2026-11-06}
}