permeabilˈity noun

1. The ability of material to allow a gas or liquid to pass through it
2. (also magnetic permeability) the ability of a material to alter the magnetic field around it

perˈmeable adjective

perˈmeably adverb

permeamˈeter noun

An instrument for measuring permeability, esp of magnetizing force and flux

perˈmeance noun

1. The act of permeating
2. The reciprocal of the reluctance of a magnetic circuit

perˈmease noun

Any enzyme which acts to assist the entry of certain sugars into cells

permeāˈtion noun

perˈmeative adjective

Having the power to permeate

permeability coefficient noun (geology)

A measure of the ability of a rock or soil to allow fluids to pass through it