WordNet 3.0 Copyright © 2006 by Princeton University.
- 1. infiltration, penetration, incursion
- usage: a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection)
- 2. percolation, infiltration, filtration
- usage: the slow passage of a liquid through a filtering medium; "the percolation of rainwater through the soil"; "the infiltration of seawater through the lava"
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See also: infiltration (Dictionary)