impermeable - Dictionary definition and pronunciation - Yahoo! Education

Definition of impermeable

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im·per·me·a·ble  audio  (m-pūrm--bl) KEY 

ADJECTIVE:
Impossible to permeate: an impermeable membrane; an impermeable border.


OTHER FORMS:
im·perme·a·bili·ty or im·perme·a·ble·ness(Noun), im·perme·a·bly(Adverb)


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