Category:Impermeable

Im*per"me*a*ble, a. Etym: [Pref. im- not + permeable: cf. F. imperméable, L. impermeabilis.]

Defn: 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.