preventing especially liquids to pass or diffuse through
"impermeable stone"; "an impermeable layer of scum"; "a coat impermeable to rain"
impossible to permeate
not allowing passage, especially of liquids; waterproof
Origin: From impermeabilis.
not permeable; not permitting passage, as of a fluid. through its substance; impervious; impenetrable; as, India rubber is impermeable to water and to air
Origin: [Pref. im- not + permeable: cf. F. impermable, L. impermeabilis.]
Chambers 20th Century Dictionary
im-pėr′mē-a-bl, adj. not permitting passage: impenetrable.—ns. Impermeabil′ity, Imper′meableness.—adv. Imper′meably.—n. Imper′meātor, a device in a steam-engine for forcing lubricating oil uniformly into the cylinder.
The numerical value of impermeable in Chaldean Numerology is: 4
The numerical value of impermeable in Pythagorean Numerology is: 9
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