Definitions
1.NounThe act of abrading, wearing, or rubbing off; the wearing away by friction. .mw-parser-output .defdate{font-size:smaller}"The metal surface showed signs of abrasion after years of use."
2.NounAn act of abrasiveness.
3.NounThe substance thus rubbed off; debris.
4.NounThe effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it.
5.NounAn abraded, scraped, or worn area.
6.NounA superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away."The doctor cleaned the small skin abrasion on her knee."
7.NounThe wearing away of the surface of the tooth by chewing.