English noun: infiltration
|1.||infiltration (act) a process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection)|
|Broader (hypernym)||incursion, penetration|
|Domain category||armed forces, armed services, military, military machine, war machine|
|2.||infiltration (process) the slow passage of a liquid through a filtering medium|
|Samples||The percolation of rainwater through the soil.|
The infiltration of seawater through the lava.