Pronunciation: in- ' fil- ˌ tr ā t, ' in-( ˌ )
Function: verb
Inflected Form: -trat · ed ; -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 \ ˌ in-( ˌ )fil- ' tr ā -sh ə n \ noun
– in · fil · tra · tive \ ' in-( ˌ )fil- ˌ tr ā -tiv, in- ' fil-tr ə - \ adjective
– in · fil · tra · tor \ in- ' fil- ˌ tr ā -t ə r, ' in-( ˌ ) \ noun