Pumice(n.) A very light porous volcanic scoria, usually of a gray color, the pores of which are capillary and parallel, giving it a fibrous structure. It is supposed to be produced by the disengagement of watery vapor without liquid or plastic lava. It is much used, esp. in the form of powder, for smoothing and polishing. Called also pumice stone.
Thesaurus Entries
ablation, ablative, abradant, abrasion, aluminum oxide, attrition, attritive, auto polish, buffing, burnish, burnishing, chafe, chafing, colcothar, corundum, crocus, detrition, dressing, emery, emery board, emery paper, erasure, erosion, erosive, file, filing, fretting, galling, garnet, gnawing, grazing, grinding, lawn-roller, limation, nail file, polish, polishes, polishing, pumice, pumice stone, rasp, rasping, roller, rottenstone, rouge, rubbing away, sandblasting, sanding, sandpaper, scouring, scrape, scraping, scratch, scratching, scrub, scrubbing, scuff, shining, shoe polish, silicon carbide, silver polish, sleeker, slicker, smooth, smoother, smoothing, wax, wear, wearing away