abrasion abrasion /əˈbreɪʒən/

noun

1. The wearing down of rock particles by friction due to water, wind or ice  ( abrasion , attrition , detrition , grinding )
   the wearing down of rock particles by friction due to water, wind or ice
   
2. Erosion by friction  ( abrasion , attrition , corrasion , detrition )
   erosion by friction
   
   
3. An abraded area where the skin is torn or worn off  ( abrasion , excoriation , scrape , scratch )
   an abraded area where the skin is torn or worn off