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.
Injury or harm; the condition or measure of something not being intact.
Cost or expense.
To impair the soundness, goodness, or value of; to harm or cause destruction.
To remove a damaged or unsalable item from the sales floor for processing.