| Porosity (n.) The quality or state of being porous; -- opposed to density. Thesaurus Entries bolter, clarifier, cradle, cribble, cribriformity, cribrosity, filter, grate, grating, honeycomb, lixiviator, net, percolator, porosity, porousness, purifier, refiner, refinery, riddle, rocker, screen, sieve, sievelikeness, sifter, sorter, sponge, strainer, winnow, winnowing basket, winnowing fan, winnowing machine |