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impermeable

Pronunciation: im-per'me-a-bel

Definition: Not permeable; not permitting the passage of substances (liquids, gases) or heat through a membrane or other structure.

Synonym(s): impervious

[L. im- permeabilis, not to be passed through]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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