abrasions

/AH0 B R EY1 ZH AH0 N Z/
noun
  1. 1

    The act of abrading, wearing, or rubbing off; the wearing away by friction.

  2. 2

    The substance thus rubbed off; debris.

  3. 3

    The effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it.

  4. 4

    An abraded, scraped, or worn area.

  5. 5

    A superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away.

  6. 6

    The wearing away of the surface of the tooth by chewing.

Source: https://en.wiktionary.org/wiki/abrasion, https://en.wiktionary.org/wiki/abrasions