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A Writer's Dictionary:

impermeability Definition


Dictionary Home » Words Starting with I » imperiousness ... impoliteness » impermeability


impermeable
adj
    1. Said of a material, etc: not allowing substances, especially liquids, to pass through or penetrate it.
      Thesaurus: impenetrable, impervious, resistant, impassable, waterproof.
Derivative: impermeability
noun
    Derivative: impermeably
    adverb
      Etymology: 17c: from Latin impermeabilis.



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