cinema vs cinematograph

cinema

noun
  • The art of making films and movies; cinematography 

  • A movie theatre, a movie house 

  • Films collectively. 

  • The film and movie industry. 

cinematograph

noun
  • A camera that could develop its own film and served as its own projector. 

verb
  • To employ the techniques of cinematography. 

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