crystallization vs precipitation

crystallization

noun
  • The formation of a solid from a solution, melt, vapour or from a different solid phase 

  • The act or process by which a substance in solidifying assumes the form and structure of a crystal, or becomes crystallized. 

  • The process or the result of becoming more definite or precise. 

  • The body formed by crystallizing. 

precipitation

noun
  • A reaction that leads to the formation of a heavier solid in a lighter liquid; the precipitate so formed at the bottom of the container. 

  • Any or all of the forms of water particles, whether liquid or solid, that fall from the upper atmosphere (e.g., rain, hail, snow or sleet). It is a major class of hydrometeor, but it is distinguished from cloud, fog, dew, rime, frost, etc., in that it must fall. It is distinguished from cloud and virga in that it must reach the ground. 

  • A hurried headlong fall. 

  • Unwise or rash rapidity; sudden haste. 

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