Definition of infiltrate in English:

infiltrate

Syllabification: in·fil·trate
Pronunciation: /ˈinfilˌtrāt, inˈfil-
 
/

verb

[with object]
1Enter or gain access to (an organization, place, etc.) surreptitiously and gradually, especially in order to acquire secret information: other areas of the establishment were infiltrated by fascists
More example sentences
  • This is why I sometimes think we should infiltrate the Countryside Alliance - we'd get more cameras pointed at us then…
  • Now that we have a common picture of the communications architecture, we must discuss using information to successfully infiltrate an enemy's position.
  • He said intelligence agents and police informers had infiltrated villages in the area and worked as drivers, masons and hawkers for months to gather information about Veerappan and his men who were suspected to be hiding nearby.
1.1Permeate or become a part of (something) by infiltration: computing has infiltrated most professions now
More example sentences
  • It reads like a blog, but you only have to look at a couple of the images to know this is a commercially popular side of US culture and quickly infiltrating ours.
  • Postmodernists claim that science, no less than religion and literature and philosophy, is infiltrated with culture.
  • The ensuing Meiji policy of modernization allowed Western ideas, institutions, and culture to infiltrate Japan.
1.2 Medicine (Of a tumor, cells, etc.) spread into or invade (a tissue or organ).
More example sentences
  • In this specimen, large lymphoid cells diffusely infiltrated muscle and fibrous tissue.
  • The surrounding stroma was infiltrated by plasma cells and scattered aggregates of lymphocytes, forming follicles with germinal centres.
  • Tumor cells also infiltrated the smooth muscle of the ciliary body.
2(Of a liquid) permeate (something) by filtration: virtually no water infiltrates deserts such as the Sahara
More example sentences
  • The holding pond should be emptied before it is full, when waste waters will infiltrate the soil.
  • Pits occur when water infiltrates a stone's pores and then freezes.
  • They know about erosion and filter effects on the landscape, but not what happens after water infiltrates the soil.
2.1Introduce (a liquid) into something by filtration: lignocaine was infiltrated into the wound
More example sentences
  • The five trocars are removed and an additional 3 mL of the lidocaine/bupivicaine mixture is infiltrated into the port sites.
  • Leaves were then infiltrated with deionized water under vacuum three times for 4 min to ensure complete infiltration.
  • Leaves were infiltrated with water according to Beyschlag and Pfanz to verify ICS.

noun

Medicine Back to top  
An infiltrating substance or a number of infiltrating cells.
More example sentences
  • His follow-up radiograph 10 days after the initiation of prednisone showed a substantial decrease of the infiltrate.
  • The bone marrow was replaced by an infiltrate of blast cells with medium-sized nuclei, multiple nucleoli, and moderate amounts of cytoplasm.
  • Although the chest radiograph may be normal initially, subsequent radiographs will reveal an infiltrate, which may extend rapidly, involving one or more lobes as well as the pleura.

Derivatives

infiltration

Pronunciation: /ˌinfilˈtrāSHən/
noun
More example sentences
  • Any large organization is inherently vulnerable to espionage and infiltration.
  • Another source of concern is terrorist infiltration of our intelligence agencies.
  • Overt violence now gives way to a conflict based on espionage and infiltration.

infiltrator

Pronunciation: /-ˌtrātər/
noun
More example sentences
  • There was a keen awareness of the possibility of infiltrators and informers; people who turned up in Sudan and later Afghanistan were rigorously vetted.
  • He laid most of the blame for Friday's violence on infiltrators from the National Intelligence Service.
  • Apparently, Ray and Ribeiro went ahead with their undercover operations, using informers and infiltrators from the underworld.
Synonyms
spy, secret agent, undercover agent, operative, informant, informer, mole, plant, spook; intruder, interloper, subversive

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