- Area of hard skin - Hard patch on palm - Skin hardened by friction - Same as Callosity - The material of repair in fractures of bone; a substance
exuded at the site of fracture, which is at first soft or cartilaginous
in consistence, 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.