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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]

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.