Dicionário

Impermeable

Webster's Dictionary 1913

Im‐per″me‐a‐ble (?), a. [Pref. im- not + permeable: cf. F. imperméable, L. 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. — Im‐per″me‐a‐ble‐ness, n. — Im‐per″me‐a‐bly, adv.