Impermeability :: Impermeability (n.) The quality of being impermeable.

Impermeable :: Impermeable (a.) Not permeable; not permitting passage, as of a fluid. through its substance; impervious; impenetrable; as, India rubber is impermeable to water and to air..

Permeability :: Permeability (n.) The quality or state of being permeable.

Permeable :: Permeable (a.) Capable of being permeated, or passed through; yielding passage; passable; penetrable; -- used especially of substances which allow the passage of fluids; as, wood is permeable to oil; glass is permeable to light..

Permeably :: Permeably (adv.) In a permeable manner.

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