Per"me*a*ble (?), a. [L. permeabilis: cf. F. perm'eable. See Permeate.]
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.
I. Taylor.
© Webster 1913.