inflammation vs smouldering

inflammation

noun
  • The act of inflaming, kindling, or setting on fire. 

  • A condition of any part of the body, consisting of congestion of the blood vessels, with obstruction of the blood current, and growth of morbid tissue. It is manifested outwardly by redness and swelling, attended with heat and pain. 

  • The state of being inflamed 

smouldering

noun
  • The act by which something smoulders; residual heat. 

adj
  • Burning slowly, producing smoke but no flame. 

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