biology vs diagnosis

biology

noun
  • The structure, function, and behavior of an organism or type of organism. 

  • The study of all life or living matter. 

  • The living organisms of a particular region. 

diagnosis

noun
  • The identification of the nature and cause of something (of any nature). 

  • A written description of a species or other taxon serving to distinguish that species from all others; especially a description written and published in Latin. 

  • The identification of the nature and cause of an illness. 

verb
  • Synonym of diagnose 

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