Permeable
Pronunciation : Per"me*a*ble
Part of Speech : a.
Etymology : [L. permeabilis: cf. F. perm?able. See Permeate.]
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913