darcy
noun
dar·cy
ˈdärsē
plural -s
: a unit of porous permeability in physics equal to the permeability of a medium through which the rate of flow of a fluid having one centipoise viscosity under a pressure gradient of one atmosphere per centimeter would be one cubic centimeter per second per square centimeter cross section compare darcy's law
Word History
Etymology
after Henri P.G. Darcy †1858 French hydraulic engineer