The act of abrading, wearing, or rubbing off; the wearing away by friction.
A superficial wound caused by scraping; an area of skin where the cells on the surface have been scraped or worn away.
The effect of mechanical erosion of rock, especially a river bed, by rock fragments scratching and scraping it.
An abraded, scraped, or worn area.
The wearing away of the surface of the tooth by chewing.
A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use.
A shining area on the frons of many species of Tabanomorpha (horse flies and relatives).
The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece.
The new formation over the end of a cutting, before it puts out rootlets.
To form such hardened tissue.