infiltration
noun/ˌɪnfɪlˈtreɪʃn/
/ˌɪnfɪlˈtreɪʃn/
- [uncountable, countable] the act of entering a place or an organization secretly, especially in order to get information that can be used against it
- the alleged infiltration of universities by agents of hostile states
- infiltration (of somebody) (into something) the infiltration of terrorists from across the border
- [uncountable] infiltration (of something) (into something) the process of passing slowly into something
- the infiltration of rain into the soil
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infiltration