porous
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source: By Biofilter tech - Template:Cermedia L.L.C., CC BY-SA 3.0
adjective
(of a rock or other material) having minute spaces or holes through which liquid or air may pass:
〈物･物質などが〉通水［通気］性の; 〈物質(の表面)などが〉多孔性の
e.g. layers of porous limestones
e.g. some rocks are more porous than others.
not retentive or secure:
｟比喩的に｠ 〈法律などが〉抜け道の多い; 〈記憶などが〉忘れやすい
e.g. he ran through a porous defense to score easily.
DERIVATIVES
porosity |pəˈräsədē| noun
porously adverb
porousness |ˈpôrəsnəs| noun
ORIGIN
late Middle English: from Old French poreux, based on Latin porus ‘pore’.