Definition of porous adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈpɔːrəs//
; NAmE NAmE//ˈpɔːrəs//
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having many small holes that allow water or air to pass through slowly porous material/rocks/surfaces He added sand to the soil to make it more porous. Word Originlate Middle English: from Old French poreux, based on Latin porus ‘pore’.
See the Oxford Advanced American Dictionary entry: porous