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1. (adj.) impermeable
not permeable; impassable.
2. impermeable
(of porous substances, rocks, etc.) not permitting the passage of a fluid.
Etymology: (1690–1700; < LL)
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| Definition of 'impermeable' |
Princeton's WordNet |
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1. (adj) impermeable
preventing especially liquids to pass or diffuse through
"impermeable stone"; "an impermeable layer of scum"; "a coat impermeable to rain"
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| Definition of 'impermeable' |
Webster Dictionary |
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1. (adj) impermeable
not permeable; not permitting passage, as of a fluid. through its substance; impervious; impenetrable; as, India rubber is impermeable to water and to air
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Definitions of impermeable 
