unpermeable

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English[edit]

Etymology[edit]

un- +‎ permeable

Adjective[edit]

unpermeable (comparative more unpermeable, superlative most unpermeable)

  1. impermeable
    • 1931, West Virginia Academy of Science, Proceedings, volumes 5-8, page 90:
      The Vorce cell is of the permeable class and the Hargreaves-Bird of the unpermeable.
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