Nonpermeable (adjective)
Not permeable.
Nonpermeable (adjective)
Having the same magnetic permeability as that of free space, so that the material in question has a magnetic permeability mu = mu_0 (where μ0 = 4π×10−7 N A−2 exactly in SI units).
Impermeable (adjective)
Impossible to permeate.
Impermeable (adjective)
Not allowing passage, especially of liquids; waterproof.
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