celluloid vs cinematograph

celluloid

noun
  • Any of a variety of thermoplastics created from nitrocellulose and camphor, once used as photographic film. 

  • The genre of cinema; film. 

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 celluloid and cinematograph occurred in a corpus of books? (source: Google Ngram Viewer )