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.
A mark left by scuffing or scraping.
A scurf; a scale.
The back part of the neck; the scruff.
To hit lightly, to brush against.
To mishit (a shot on a ball) due to poor contact with the ball.
To scrape and roughen the surface of (shoes, etc.)
To scrape the feet while walking.