divulgation vs ventilation

divulgation

noun
  • The communication of technology or science to the general public, public awareness of science. 

  • The disclosure or revelation of a secret. 

  • The act of divulging or publishing; publication. 

ventilation

noun
  • The public exposure of an issue or topic. 

  • The bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide. 

  • An exchange of views during a discussion. 

  • The mechanical system used to assist breathing. 

  • The replacement of stale or noxious air with fresh. 

  • The mechanical system used to circulate and replace air. 

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