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Infiltrate Definition

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Other Infiltrate Definition

[v] pass through an enemy-line; in a military conflict
[v] pass into or through by filtering or permeating; "the substance infiltrated the material"
[v] cause (a liquid) to enter by penetrating the interstices
[v] enter a group or organization in order to spy on the members; "The student organization was infiltrated by a traitor"

Misc. Definitions

\In*fil"trate\, v. i. [imp. & p. p. {Infiltrated}; p. pr. & vb. n. {Infiltrating}.] [Pref. in- + filtrate: cf. F, s'infiltrer. Cf. {Infilter}.] To enter by penetrating the pores or interstices of a substance; to filter into or through something. The water infiltrates through the porous rock. --Addison.
\In*fil"trate\, v. t. To penetrate gradually; -- sometimes used reflexively. --J. S. Mill.

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