Not if you look at the sample sentence provided at that link: Democrats faired marginally better in the study, ringing in at 31 percent.. I believe that using that sentence is an error on dictionary.com's part.
Porosity and Permeability Lab. The terms porosity and permeability are related. ï· porosity â the amount of empty space in a rock or other earth substance; this empty. space is known as pore space. Porosity is how much water a substance can hold. Porosity is usually stated as a percentage of the materialâs total volume. ï· permeability â is how well water flows through rock or other earth substance.
A porous substance has a permeability of 1 darcy if, in 1 second, 1 cubic centimeter of a gas or liquid with a viscosity of 1 centipoise will flow through a section 1-centimeter thick with a cross section of 1 square centimeter, when the difference between the pressures on the two sides of the section is 1 atmosphere.hat unit has no special name. The SI unit of permeability = 1.013 25 Ã 10 12 darcy. The darcy is named for the French scientist H. Darcy (1803-1858), an early investigator of fluid flow in porous materials.