porosity: Meaning and Definition of

po•ros•i•ty

Pronunciation: (pô-ros'i-tē, pō-, pu-), [key]
— pl. -ties
  1. the state or quality of being porous.
  2. the ratio, expressed as a percentage, of the volume of the pores or interstices of a substance, as a rock or rock stratum, to the total volume of the mass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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