Callus
From BiblePortal Wikipedia
Callus [1]
(1): (n.) 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.
(2): (n.) The new formation over the end of a cutting, before it puts out rootlets.
(3): (n.) Same as Callosity