What is the meaning of Abrasion?

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

An act of abrasiveness.

The substance thus rubbed off; debris.

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

An abraded, scraped, or worn area.

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

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

abrasion

Source: wiktionary.org