From Longman Dictionary of Contemporary Englishporouspo‧rous /ˈpɔːrəs/ adjective 1 HEGHOLEallowing liquid, air etc to pass slowly through many very small holes porous material2 easy to pass through or get into something the porous border between Haiti and the Dominican Republic
Examples from the Corpus
porous• The gas bubbles get trapped if you add flour, lifting the dough and making it porous.• It is caused by a loss of calcium in the bones that makes them become softer, porous and weaker.• The original porous bone has been consolidated to become much heavier than it would have been in life.• Now, thanks to modern architecture and a porous defense, neither is a problem.• If a garage has a porous floor, it can become extremely damp.• Plants in containers made of porous material, must be watered more often than those in plastic pots.• porous rock• Others, like sponges, consisted of a colony of cells with a porous skeleton.• Some rocks are more porous than others.• The elaborate nets thrown out by air proved far too porous to trap major enemy units.• Normally, most of the water in urine is recycled through the porous walls of the collecting tubes.Origin porous (1300-1400) French poreux, from pore; → PORE1 