"porous" in the adjective sense
1. porous
able to absorb fluids
"the partly porous walls of our digestive system"
"compacting the soil to make it less porous"
2. porous, poriferous
full of pores or vessels or holes
3. holey, porous
allowing passage in and out
"our unfenced and largely unpoliced border inevitably has been very porous"
Source: WordNet® (An amazing lexical database of English)
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