PERMEABILITY

n. penetrability, ability to be permeated, ability to be entered

Permeability, permeable and semipermeable have several meanings:Permeability (electromagnetism), is the degree of magnetization of a material in response to a magnetic fieldPermeability (fluid), is a measure of the ability of a material (such as rocks) to transmit fluidsSemipermeable membrane, a membrane which will allow certain molecules or ions to pass through it by diffusionPermeability (nautical) in ship design is the percentage of empty space in a compartment or tankVascular permeability, the movement of fluids and molecules between the vascular and extravascular compartments
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Permeability /per·me·a·bil·i·ty/ the property or state of being permeable. per·me·a·bil·i·ty n. 1. The property or condition of being permeable. 2. [more]Permeability - Community and Resources

Noun
1. the property of something that can be pervaded by a liquid (as by osmosis or diffusion)
(synonym) permeableness
(antonym) impermeability, impermeableness
(hypernym) porosity, porousness
(hyponym) penetrability, perviousness

(n.)
The quality or state of being permeable.