"act of permeating; state of being permeated," 1620s, noun of action from Latin permeare "to pass through" (see permeate).
Entries linking to permeation
permeate v.
"to pass into or through without rupture or displacement," 1650s, from Latin permeatus, past participle of permeare "to pass through," from per "through" (from PIE root *per- (1) "forward," hence "through") + meare "to pass," from PIE root *mei- (1) "to change, go, move." Related: Permeated; permeating.