amalgamation vs dispersal

amalgamation

noun
  • The result of amalgamating; a mixture or alloy. 

  • The production of an alloy of mercury and another metal. 

  • The process of amalgamating; a mixture, merger or consolidation. 

dispersal

noun
  • The act or result of dispersing or scattering; dispersion. 

  • A dispersal prison. 

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