cannonade vs long Tom

cannonade

noun
  • The firing of artillery for a length of time. 

  • A loud noise like a cannonade; a booming. 

verb
  • To discharge artillery fire upon. 

long Tom

noun
  • Any of various early cannon and field guns. 

  • A high-powered lens for long-distance filming or photography. 

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