Definition of infiltrate in English:

infiltrate

verb

[WITH OBJECT]
  • 1Enter or gain access to (an organization, place, etc.) surreptitiously and gradually, especially in order to acquire secret information.

    ‘the organization has been infiltrated by informers’
    • ‘For the next four decades, a small minority from certain Iraqi towns would gradually infiltrate the highest governmental positions as well as the top officer ranks in the army.’
    • ‘A secret land, infiltrated by humans, and the loss of spirituality is at stake.’
    • ‘They often disguise their affiliation by wearing civilian clothes, and they often carry arms covertly to infiltrate various places.’
    • ‘From 1999 until early 2001, Lauder infiltrated the organised racist movement in Canada.’
    • ‘One officer so deeply infiltrated the Communist Party that he traveled to the Soviet Union.’
    • ‘It is infiltrating their organizations beyond bombing their training bases.’
    • ‘It propagates paranoia about the Third World's dark intentions to gatecrash and infiltrate the Western World over a period of time, and take it over eventually.’
    • ‘The organisation has been heavily infiltrated by informers and many of its members are now in jail.’
    • ‘Well, I believe the electronic surveillance has importance, but we really need to infiltrate the terrorist organizations.’
    • ‘They were criminals recruited by an MI6 officer to infiltrate the IRA.’
    • ‘I think they'd recognize if Senator Hatch or I tried to infiltrate the organization.’
    • ‘Mr Santos told reporters that there were indications the security forces had been infiltrated at a very high level.’
    • ‘The initial Federal raid relied upon surprise for safety, and grabbed the evidence after successfully infiltrating the place.’
    • ‘Your intrepid blogger promises to infiltrate this suspicious-sounding organization and report the truth!’
    • ‘They have infiltrated organizations large and small.’
    • ‘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.’
    • ‘Now that we have a common picture of the communications architecture, we must discuss using information to successfully infiltrate an enemy's position.’
    • ‘I hope that we continue to have brave men and women who infiltrate these organizations in order to help to protect society.’
    • ‘It will take years for the intelligence organizations to infiltrate terrorist organizations and be in a position to carry out these assassinations.’
    • ‘This is why I sometimes think we should infiltrate the Countryside Alliance - we'd get more cameras pointed at us then…’
    penetrate, invade, intrude on, insinuate oneself into, worm one's way into, sneak into, slip into, creep into, impinge on, trespass on, butt into
    View synonyms
    1. 1.1 Gradually permeate or become a part of.
      ‘computing has infiltrated most professions now’
      • ‘Spencer said one of the major steps was to encourage followers to enter the ministry of various churches and to infiltrate North America's schools and teaching colleges.’
      • ‘The ensuing Meiji policy of modernization allowed Western ideas, institutions, and culture to infiltrate Japan.’
      • ‘Postmodernists claim that science, no less than religion and literature and philosophy, is infiltrated with culture.’
      • ‘Capitalism has infiltrated the Scottish Socialists' camp.’
      • ‘Shamanic thought is gradually infiltrating the greater Pagan community.’
      • ‘Does western culture and its values infiltrate traditional Indian values?’
      • ‘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.’
      • ‘And it's certainly true that our style has infiltrated into the style of singing and congregational worship in this church.’
      • ‘The way we dress, even the way we speak, is impinged on and infiltrated by these alien cultures.’
      • ‘Japanese leisure is also infiltrating U.S. culture.’
      • ‘Foreign culture has constantly infiltrated China in the form of weapons and then at the mental and conceptual level.’
      • ‘The fascist bent that infiltrated Argentina in the 1930s was quite popular among conservative artists and intellectuals.’
      • ‘Nothing against those particular bands, but their sound has evidently infiltrated the very atmosphere of our fair cities.’
      • ‘The discrimination exists across all of society and, according to this research, has infiltrated into the agencies charged with confronting the problem.’
      • ‘How much of Atheism has infiltrated into legislative and executive branches at all levels of government?’
    2. 1.2Medicine (of a tumour, cells, etc.) spread into or invade (a tissue or organ)
      ‘one of the tumours infiltrated the submucosa’
      • ‘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.’
      • ‘The tumor infiltrated into the coronary sinus.’
      • ‘Tumor cells also infiltrated the smooth muscle of the ciliary body.’
      • ‘The lymphoid cells infiltrating all the organs were small round cells with scanty cytoplasm, morphologically similar to normal lymphocytes.’
  • 2(of a liquid) permeate (something) by filtration.

    ‘virtually no water infiltrates deserts such as the Sahara’
    • ‘The holding pond should be emptied before it is full, when waste waters will infiltrate the soil.’
    • ‘In a few locations, spills of these liquids infiltrated the soil and created very large areas of contaminated groundwater and 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.’
    • ‘In coastal regions, sea water can infiltrate the rocks, and a salt-water wedge will then form below sea level under the fresh groundwater.’
    • ‘That allows atmospheric carbon dioxide to infiltrate the weak paste and deeply carbonate the calcium hydroxide and other cement hydrates present.’
    permeate, penetrate, pervade, filter through, percolate through, spread through, seep into, seep through, soak into, flow into, pass into, get into, enter
    View synonyms
    1. 2.1 Cause (a liquid) to permeate something by filtration.
      ‘lignocaine was infiltrated into the wound’
      • ‘Leaves were infiltrated with water according to Beyschlag and Pfanz to verify ICS.’
      • ‘For freeze fractures the glutaraldehyde-fixed cells were infiltrated with 30% glycerol.’
      • ‘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.’
      • ‘To prepare a dysfunctional bundle for fixation, intercellular spaces of the sample were vacuum infiltrated with water, which rendered the parenchyma reasonably transparent and suitable for dissection.’

noun

Medicine
  • An infiltrating substance or a number of infiltrating cells.

    ‘a chest radiograph revealed a patchy infiltrate in the left lower lobes’
    • ‘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.’
    • ‘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.’
    • ‘The triads may show a variable degree of ductal and ductular proliferation, and may even demonstrate edema and a neutrophilic infiltrate.’

Origin

Middle English (as infiltration): from in- + filtrate.

Pronunciation

infiltrate

/ˈɪnfɪltreɪt/