Permeation n. The act of permeating, passing through, or spreading throughout, the pores or interstices of any substance. "Here is not a mere involution only, but a spiritual permeation and inexistence."
... that many strata of limestone, chert, and other rocks which are now brittle, were pliant when bent into their present position. They may have owed their flexibility in part to the fluid matter which they contained in their minute pores, as before described, and in part to the permeation of sea-water ... — The Student's Elements of Geology • Sir Charles Lyell
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