The effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it.
A superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away.
An abraded, scraped, or worn area.
The wearing away of the surface of the tooth by chewing.
The act of abrading, wearing, or rubbing off; the wearing away by friction.
A splinter of stone inserted into the wet mortar of masonry.
To use this masonry technique.