impermeable Hear it!

impermeable definition

im·per·meable (im pʉr′mē ə bəl)

adjective

not permeable; not permitting fluids to pass through it; impenetrable

Etymology: LL impermeabilis

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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