2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Impermeable \Im*per"me*a*ble\, a. [Pref. im- not + permeable:
cf F. imperm['e]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
From WordNet r 1.6 [wn]:
impermeable
adj : preventing especially liquids to pass or diffuse through
"impermeable stone"; an impermeable layer of scum"; "a
coat impermeable to rain" [ant: {permeable}]
more about impermeable
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Lake Atitlan, Guatemala
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