porosity

The state or property of being porous.

A structure or part that is porous.

The ratio of the volume of all the pores in a material to the volume of the whole.

The state or quality of being porose, porous, or pervious; perforation.

A pore or perforation.

The quality or state of being porous; — opposed to density.

The state of being porous

A measure of how porous a material is; the ratio of the volume of pores to the total volume

the property of being porous; being able to absorb fluids