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Impossible to permeate.
Not allowing passage, especially of liquids; waterproof.
From French imperméable, from Latin impermeābilis, from im- + permeābilis (“permeable”).
Thus in the western mountain districts of Great Britain, largely composed of nearly impermeable rocks more Lion.
It is now a requirement to use virtually impermeable Film in methyl bromide treatments.
The surface of the earth is rarely impermeable, and the structure of the rocks largely determines the direction of flow of so much of the rainfall as sinks into the ground and is not evaporated.
The finished surface is totally impermeable, resistant to frost and repeated freeze-thaw cycles.
Yet another option is winding the insert into a diaper itself, and then placing a rubber or other impermeable cover over the cloth diaper.
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