callus vs wound

callus

noun
  • 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. 

verb
  • To form such hardened tissue. 

wound

noun
  • An injury to a person by which the skin is divided or its continuity broken. 

  • An injury, such as a cut, stab, or tear, to a (usually external) part of the body. 

  • A hurt to a person's feelings, reputation, prospects, etc. 

verb
  • To hurt (a person's feelings). 

  • To hurt or injure (someone) by cutting, piercing, or tearing the skin. 

How often have the words callus and wound occurred in a corpus of books? (source: Google Ngram Viewer )