Main Entry: in·fil·trate

Pronunciation: \in-ˈfil-ˌtrāt, ˈin-(ˌ)\

Function: verb

Inflected Form(s): in·fil·trat·ed; in·fil·trat·ing

Date: 1758

transitive verb 1 : to cause (as a liquid) to permeate something by penetrating its pores or interstices
2 : to pass into or through (a substance) by filtering or permeating
3 : to pass (troops) singly or in small groups through gaps in the enemy line
4 : to enter or become established in gradually or unobtrusively usually for subversive purposes <the intelligence staff had been infiltrated by spies>intransitive verb : to enter, permeate, or pass through a substance or area by filtering or by insinuating gradually

— infiltrate noun

— in·fil·tra·tion \ˌin-(ˌ)fil-ˈtrā-shən\ noun

— in·fil·tra·tive \ˈin-(ˌ)fil-ˌtrā-tiv, in-ˈfil-trə-\ adjective

— in·fil·tra·tor \in-ˈfil-ˌtrā-tər, ˈin-(ˌ)\ noun