'Permeable' definitions:
Definition of 'permeable'
(from WordNet)
adjective
Allowing fluids or gases to pass or diffuse through; "permeable membranes"; "rock that is permeable by water" [ant: impermeable]
Definition of 'Permeable'
From: GCIDE
- Permeable \Per"me*a*ble\, a. [L. permeabilis: cf. F. perm['e]able. 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. [1913 Webster]