radiograph vs simulcast

radiograph

verb
  • To produce a radiograph image. 

noun
  • An instrument for measuring and recording solar radiation. 

  • An image, often a photographic negative, produced by radiation other than normal light; especially an X-ray photograph. 

simulcast

noun
  • A program or event that is broadcast across more than one medium or service at the same time. 

verb
  • To broadcast a program or event across more than one medium or service at the same time. 

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