Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun infiltration

2 senses of infiltration

Sense 1
infiltration -- (a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection))
       => penetration, incursion -- (an attack that penetrates into enemy territory)

Sense 2
percolation, infiltration -- (the slow passage of a liquid through a filtering medium; "the percolation of rainwater through the soil"; "the infiltration of seawater through the lava")
       => filtration -- (the process whereby fluids pass through a filter or a filtering medium)