permitting liquids or fumes to pass or diffuse through
- with the capacity of becoming permeated or passed through producing passageway passable penetrable made use of specially of substances which allow the passing of fluids as wood is permeable to oil cup is permeable to light
- with the capacity of becoming permeated, or passed away through; producing passageway; passable; penetrable; -- used particularly of substances which allow the passage of fluids; as, timber is permeable to oil; cup is permeable to light.
Having pores or open positions that enables liquids/gases to feed
early 15c., from Late Latin permeabilis "which can be passed through, passable," from Latin permeare "to pass through, go over," from per- "through" (see per) + meare "to pass through," from PIE root *mei- (1) "to change" (see mutable). Associated: Permeably.
Precisely the same thing happens in the actual crust of the earth, except that, in the formations usually met with, the strata are so irregularly permeable that no such uniform percolation occurs, and most of the water, instead of oozing out near the sea-level, meets with obstructions which cause it to issue, sometimes below the sea-level and sometimes above it, in the form of concentrated springs.