[n] the wearing down of rock particles by friction due to water or wind or ice [n] erosion by friction [n] an abraded area where the skin is torn or worn off
attrition, attrition, corrasion, detrition, detrition, excoriation, grinding, scrape, scratch
ablation, abrasive, abstraction, atomization, attrition, beating, blemish, break, brecciation, buffing, burn, burnishing, chafe, chafing, check, chip, comminution, concussion, crack, crackle, craze, crumbling, crushing, cut, deduction, detrition, disinteg