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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 perviousness
 透水性; 透水性; 可透性; 滲透性

From: Webster's Revised Unabridged Dictionary (1913)

 Per·vi·ous·ness, n. The quality or state of being pervious; as, the perviousness of glass.
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From: WordNet (r) 2.0

 perviousness
      n : the permeability of something that can be penetrated by a
          liquid [syn: penetrability] [ant: impenetrability, impenetrability]