Definiciones
1.NounA hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use.
2.NounThe 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.
3.NounThe new formation over the end of a cutting, before it puts out rootlets.
4.NounIn orchids, a fleshy outgrowth from the labellum.
5.NounIn grasses, a hardened extension from the base of a floret, which may or may not elongate and is often covered in hairs or bristles.
6.NounA shining area on the frons of many species of Tabanomorpha (horse flies and relatives).
7.VerbTo form such hardened tissue.