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In science, permeability, permeable, and semipermeable may refer to one of the below.


  • Permeability (electromagnetism), the degree of magnetization of a material in response to a magnetic field
  • Vacuum permeability, permeability of free space or magnetic constant, a physical constant, the value of magnetic permeability in a classical vacuum


  • Semipermeable membrane, a membrane which will allow certain molecules or ions to pass through it by diffusion
  • Vascular permeability, the movement of fluids and molecules between the vascular and extravascular compartments
  • Permeation of a gas or vapor through a solid substance

Earth and soil science[edit]

Vehicles and transport[edit]


  • "Impermeable", a song by Ha*Ash from the album A Tiempo (2011)