abrasi

Etymology
From, from (attested since 1611), from , from.

Noun

 * 1) the act of abrading, wearing, or rubbing off; the wearing away by friction.
 * 2)  the effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it.
 * 3)  a superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away.
 * 1)  the effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it.
 * 2)  a superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away.
 * 1)  a superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away.