Materials used for wearing away a surface by friction, such as powdered pumice, silica, sandpaper, metal shot, mineral slags, steel wool, or glass beads. Also, used for abrasive blast cleaning, e.g. sand, grit, carborundum, baking soda, rice hulls, ground walnut shells, etc.
small round particles which are added to cosmetic products to eliminate materials on the skin's surface, to help in the mechanical cleaning of the teeth and improve their shine. A substance's abrasive capacity is determined by the particles' hardness, size and shape.