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impermeable
(redirected from impermeability)

    Also found in: Dictionary/thesaurus, Encyclopedia 0.15 sec.
impermeable /im·per·me·a·ble/ (-per´me-ah-b'l) not permitting passage, as of fluid.
im·per·me·a·ble (m-pûrm--bl)
adj.
Impossible to permeate; not permitting passage.
im·perme·a·bili·ty, im·perme·a·ble·ness n.
impermeable
[impur′mē·əbəl]
Etymology: L, im, not, permeare, to pass through
(of a tissue, membrane, or film) preventing the passage of a substance through it. Also impervious [impur′vē·əs] . Compare permeable.
impermeable
not permitting passage, as for fluid.


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