anatomy vs zoology

anatomy

noun
  • A treatise or book on anatomy. 

  • The human body, especially in reference to the private parts. 

  • The physical or functional organization of an organism, or part of it. 

  • The science that deals with the form and structure of organic bodies; anatomical structure or organization. 

  • The art of studying the different parts of any organized body, to discover their situation, structure, and economy. 

  • The form of an individual. 

  • The act of dividing anything, corporeal or intellectual, for the purpose of examining its parts. 

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 anatomy and zoology occurred in a corpus of books? (source: Google Ngram Viewer )