disintegration vs dissolution

disintegration

noun
  • A process by which anything disintegrates. 

  • The wearing away or falling to pieces of rocks or strata, produced by atmospheric action, frost, ice, etc. 

  • The process of radioactive decay. 

  • The condition of anything which has disintegrated. 

  • The radioactive decay of a single atom. 

dissolution

noun
  • Disintegration, or decomposition into fragments. 

  • The termination of an organized body or legislative assembly, especially a formal dismissal. 

  • The quality of being dissolute. 

  • Dissolving, or going into solution. 

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