callus vs dissolve

callus

verb
  • To form such hardened tissue. 

noun
  • 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. 

  • A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use. 

dissolve

verb
  • To liquify, melt into a fluid. 

  • To break the continuity of; to disconnect; to loosen; to undo; to separate. 

  • To terminate a union of multiple members actively, as by disbanding. 

  • To be disintegrated by such immersion. 

  • To disperse, drive apart a group of persons. 

  • To resolve itself as by dissolution. 

  • To disintegrate chemically into a solution by immersion into a liquid or gas. 

  • To destroy, make disappear. 

  • To be melted, changed into a fluid. 

  • To shift from one shot to another by having the former fade out as the latter fades in. 

  • To relax by pleasure; to make powerless. 

  • To annul; to rescind; to discharge or release. 

noun
  • a form of film punctuation in which there is a gradual transition from one scene to the next 

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