pathogenic vs toxicant

pathogenic

adj
  • Able to cause (harmful) disease. 

  • Consisting of harsh, percussive, nonverbal sounds. 

toxicant

adj
  • Capable of causing damage or dysfunction by toxicity; (broadly) poisonous. 

noun
  • A toxic or poisonous substance. 

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