blistering vs tropic

blistering

adj
  • Very hot. 

  • Causing blisters. 

  • Harsh or corrosive. 

  • Scornful. 

  • Very fast. 

noun
  • The practice of forming blisters on the skin, to promote blood flow and aid healing. 

tropic

adj
  • Hot and humid. 

  • Of, or relating to the tropics; tropical. 

  • Having the quality of indirectly inducing a biological or chemical change in a system or substrate. 

  • Pertaining to, involving, or of the nature of a trope or tropes. 

noun
  • Either of the two parallels of latitude 23°27′ north and south of the equator; the farthest points at which the sun can be directly overhead; the boundaries of the torrid zone or tropics. 

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