antimicrobial vs germicide

antimicrobial

noun
  • an agent that destroys microbes, inhibits their growth, or prevents or counteracts their pathogenic action 

adj
  • tending to destroy or capable of destroying microbes 

  • inhibiting the growth of microbes 

  • preventing or counteracting the pathogenic action of microbes 

germicide

noun
  • An agent that kills pathogenic organisms; a disinfectant. 

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