bactericidal vs disinfectant

bactericidal

adj
  • That kills bacteria. 

  • Of or pertaining to a bactericide. 

noun
  • A bactericide. 

disinfectant

adj
  • Serving to kill germs or viruses. 

noun
  • A substance that kills germs and/or viruses. 

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