·noun ·same·as Callosity.
II. Callus ·noun The new formation over the end of a cutting, before it puts out rootlets.
III. Callus ·noun 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.