porous
    adj 1: able to absorb fluids; "the partly porous walls of our
           digestive system"; "compacting the soil to make it less
           porous"
    2: full of pores or vessels or holes [syn: porous,
       poriferous] [ant: nonporous]
    3: allowing passage in and out; "our unfenced and largely
       unpoliced border inevitably has been very porous" [syn:
       holey, porous]

Porous \Por"ous\, a. [Cf. F. poreux. See Pore, n.]
   Full of pores; having interstices in the skin or in the
   substance of the body; having spiracles or passages for
   fluids; permeable by liquids; as, a porous skin; porous wood.
   "The veins of porous earth." --Milton.
   [1913 Webster]