<p><strong>Noun</strong></p><ul><li>The property or state of being permeable.</li><li>Also called magnetic permeability.</li><li><strong>Electricity:</strong> A measure of the change in magnetic induction produced when a magnetic material replaces air, expressed as a coefficient or a set of coefficients that multiply the components of magnetic intensity to give the components of magnetic induction.</li><li><strong>Geology:</strong> The capability of a porous rock or sediment to permit the flow of fluids through its pore spaces.</li><li><strong>Aeronautics:</strong> The rate at which gas is lost through the envelope of an aerostat, usually expressed as the number of liters thus diffused in one day through a square meter.</li><li><strong>Nautical:</strong> The capacity of a space in a vessel to absorb water, measured with reference to its temporary or permanent contents and expressed as a percentage of the total volume of the space.</li></ul><p><strong>End of Response</strong></p>