|  permeable 
 
 allowing fluids or gases to pass or diffuse through
 - permeable membranes
 - rock that is permeable by water
 • Ant:
 impermeable
 • Similar to:
 porous, semipermeable
 • See Also:
 leaky, pervious
 • Derivationally related forms:
 permeability, permeableness
 
 
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