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Webster 1913 Edition

Impermeability

Im-perˊme-a-bil′i-ty

,

Noun.

[Pref.

im-

not +

permeability

: cf. F.

imperméabilité

.]

The quality of being impermeable.

Webster 1828 Edition

Impermeability

IMPERMEABIL'ITY

,

Noun.

The quality of being impermeable by a fluid.