Porosity
A hole-like discontinuity formed by gas entrapment during solidification.
Related Links
porosity – Dictionary Definition : Vocabulary.com
Porosity
Porosity – an overview | ScienceDirect Topics
File:Well sorted vs poorly sorted porosity.svg
Inadequate Porosity – Cornell Composting
Related Videos

Porosity and Permeability
-
Porosity and Permeability