combustion vs hidrosis

combustion

noun
  • A process whereby two chemicals are combined to produce heat. 

  • A process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat. 

  • The act or process of burning. 

  • Violent agitation, tumult. 

hidrosis

noun
  • The formation and excretion of sweat; sweating; perspiration; and (sometimes, more particularly) 

  • Excessive sweating; excessive perspiration (more than would be expected in response to a given stimulus; especially when profuse as a symptom of disease or a side effect of a drug). 

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