- a method of attack in which small bodies of soldiers or individual soldiers penetrate the enemy's line at weak or unguarded points in order to assemble behind the enemy position and attack it from the rear, harass enemy rear-area installations, etc.
- a system of transporting troops or vehicles at extended and irregular intervals so as to avoid enemy observation or attack, especially from the air.
OTHER WORDS FROM infiltrationre·in·fil·tra·tion, noun
Words nearby infiltration
How to use infiltration in a sentence
Through revelations like these, the industry has become known for using the modern tools of espionage—hacking, surveillance, infiltration, misdirection—in ways that confer power and impunity upon the rich.The World's Most Famous Private Detective Makes No Apologies|Simon Shuster|September 10, 2021|Time
It is also obviously the case that the specter of terrorist infiltration over an unguarded southern border has been a long-standing bit of hand-wringing from members of McCarthy’s party and an unproven one.Even the terrorist threat to the United States is now partisan|Philip Bump|May 20, 2021|Washington Post
Recent catastrophes, such as active hurricane seasons and the infiltration of the oil industry, have only exacerbated the crisis.As customers and coastlines disappear, a New Orleans chef fights for her community|Dayana Sarkisova|December 17, 2020|Washington Post
The military commission this week was to focus on the alleged FBI infiltration of one of the defense teams.Prosecutors Have No Idea When 9/11 Mastermind’s Trial Will Start|Tim Mak|December 17, 2014|DAILY BEAST
Police sources informed Reforma that both action are considered “high risk” and ripe for “anarchist infiltration.”
Though Yousef was active in the West Bank Hamas, Gaza would have been attainable infiltration.
Infiltration, though, may well taint all main rebel factions.
There are nearly 2,000 African migrants held in internment camps in the Negev desert as a result of the Anti-Infiltration Law.Israeli High Court Judges Let the Oppressed Go Free at Yom Kippur|Joshua Bloom|September 18, 2013|DAILY BEAST
If this had been finished the waters would perhaps have invaded it by infiltration.A history of art in ancient Egypt, Vol. I (of 2)|Georges Perrot
Another possible source of loss is the infiltration of small particles of alloy into the cupel.A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
Old Hadley has become a prototype of what may become general if this racial infiltration is not soon checked.
American ideals and institutions have borne and can bear a great deal of foreign infiltration.
There was very general carbonaceous infiltration throughout the lungs, without excavations to any extent.An Investigation into the Nature of Black Phthisis|Archibald Makellar