detonator vs munition

detonator

noun
  • A device used to detonate an explosive device etc. 

  • a small explosive device attached to the railhead to provide an audible warning when a train passes over it. 

munition

noun
  • Bombs, rockets, missiles (complete explosive devices, in contrast to e.g. guns). 

  • Materials of war: armaments, weapons and ammunition. 

verb
  • To supply with munitions. 

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