caloric vs calorific

caloric

adj
  • Relating to calories. 

  • Synonym of calorific (“high in calories and thus likely fattening”). 

  • Synonym of calorific (“relating to or producing heat or other energy”). 

  • Containing calories. 

noun
  • The hypothetical medium of heat. 

calorific

adj
  • Relating to calories. 

  • High in calories and thus likely fattening. 

  • Relating to or producing heat or other energy. 

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