permeability.

1. The extent to which a material or barrier permits fluids or other substances to pass through it.

2. A quantity describing how a medium’s magnetic flux density relates to magnetic field strength.

Use it for

Words that belong together

• membrane permeability
• soil permeability

On the page

The membrane’s permeability changed after the prolonged exposure.

Porosity alone did not explain the soil’s measured permeability.

Usage notes

Primary category: sci-fi. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.