Akademik

infiltration
noun
1. a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection) (Freq. 5)
Derivationally related forms: ↑infiltrate
Topics: ↑military, ↑armed forces, ↑armed services, ↑military machine, ↑war machine
Hypernyms: ↑penetration, ↑incursion
2. the slow passage of a liquid through a filtering medium
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the percolation of rainwater through the soil

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the infiltration of seawater through the lava

Syn: ↑percolation
Derivationally related forms: ↑infiltrate, ↑percolate (for: ↑percolation)
Hypernyms: ↑filtration

Useful english dictionary. 2012.