dissection vs zoology

dissection

noun
  • a minute and detailed examination or analysis 

  • the act of dissecting, or something dissected 

  • surgical removal 

zoology

noun
  • A treatise on this science. 

  • The part of biology relating to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct. 

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