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. / The substance which has entered the pores or cavities of a body.

That infiltrates

In an infiltrative manner; by means of infiltration

Able to undergo infiltration (of water).

The ability (of a soil etc.) to undergo infiltration (of water).

plural of infiltrability