permeable Meaning, Definition & Usage

  1. adjective allowing fluids or gases to pass or diffuse through
    • permeable membranes
    • rock that is permeable by water

WordNet

Per"me*a*ble adjective
Etymology
L. permeabilis: cf. F. perméable. See Permeate.
Definitions
  1. 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