porosity

from WordNet (r) 3.0 (2006)

porosity
    n 1: the property of being porous; being able to absorb fluids
         [syn: {porosity}, {porousness}] [ant: {solidity},
         {solidness}]

from The Collaborative International Dictionary of English v.0.48

Porosity \Po*ros"i*ty\, n. [Cf. F. porosit['e].]
   The quality or state of being porous; -- opposed to density.
   [1913 Webster]

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