English Dictionary: impermeable | by the DICT Development Group |
2 results for impermeable | |
From WordNet (r) 3.0 (2006) [wn]: | |
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From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Impermeable \Im*per"me*a*ble\, a. [Pref. im- not + permeable: cf. F. imperm[82]able, 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. |