PERMEABILITY
permeability, permeableness
(noun) the property of something that can be pervaded by a liquid (as by osmosis or diffusion)
Source: WordNet® 3.1
Etymology
Noun
permeability (usually uncountable, plural permeabilities)
the property of being permeable
the rate of flow of a fluid through a porous material
(geology) a measure of the ability of a rock to transmit fluids (such as oil or water)
(physics) a quantitative measure of the degree of magnetization of a material in the presence of an applied magnetic field (measured in newtons per ampere squared in SI units).
Source: Wiktionary
Per`me*a*bil"i*ty, n. Etym: [Cf. F. perméabilité.]
Definition: The quality or state of being permeable. Magnetic permeability
(Physics), the specific capacity of a body for magnetic induction, or
its conducting power for lines of magnetic force. Sir W. Thomson.
Source: Webster’s Unabridged Dictionary 1913 Edition