permeable
/ˈpɜːmɪəbl/adjective
- (of a material or membrane) allowing liquids or gases to pass through it（材料, 膜）可渗透的, 具渗透性的：
a frog's skin is permeable to water.
青蛙的皮肤能透水。
词源
late Middle English: from Latin permeabilis, from permeare 'pass through' （see PERMEATE）.