Definition: Property of membranes and other structures to permit passage of light, heat, gases, liquids, metabolites, and mineral ions.
coord NIM with substance /pharmacokin (IM) or /metab (IM) or tissue /metab (IM); for nonbiological material coord with substance /chem (IM); note VASCULAR PERMEABILITY see CAPILLARY PERMEABILITY
ExamplesOsmosis; Osmotic Pressure