Infiltration

Pronunciation

Full definition of infiltration

Noun

1. The act or process of infiltrating, as of water into a porous substance, or of a fluid into the cells of an organ or part of the body.
2. The substance which has entered the pores or cavities of a body.
• Kirwancalcareous infiltrations filling the cavities
3. The act of entering a physical location and/or organization secretly.