- 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.
- infield out,
- infiltration anesthesia,
- infiltration capacity,
- infiltration gallery,
Origin of infiltration
Examples from the Web for infiltration
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
Last year, he orchestrated the infiltration of a Florida immigration detention center.
The Taliban leadership makes no secret that it has targeted the ALP for attack and for infiltration.Afghanistan’s Rape Crisis: Villagers Fear U.S.-Backed Militias|Sami Yousafzai, Ron Moreau|May 22, 2013|DAILY BEAST
Under a recent amendment to Israel's infiltration law, asylum seekers can be jailed for years without trial.Israel Deports Refugees to Sudan Despite Threat to Their Lives|Emily L. Hauser|February 27, 2013|DAILY BEAST
Laghman, situated on one of the main Taliban infiltration routes to and from Pakistan, is a hotbed of insurgent activity.
The liquid remains in it quite well, without any trace of infiltration.Bramble-bees and Others|J. Henri Fabre
The water supplied by infiltration no doubt repairs the loss to a great degree.
Although its progress is slow, the infiltration of the bone is usually more extensive than appears externally.Manual of Surgery|Alexis Thomson and Alexander Miles
The Beaker people were an excellent choice for infiltration.The Time Traders|Andre Norton
In order to remedy the mischief of infiltration it was resolved to remove and replace this projecting ledge.
early 15c., "a knitting together," noun of action from infiltrate. In physics, from 1796. Figurative sense of "a passing into" (anything immaterial) is from 1840; military sense of "stealthy penetration of enemy lines" dates from 1930.