circumcision vs doctor's

circumcision

noun
  • The surgical removal of the foreskin of the penis. 

  • The surgical removal of the clitoral hood of the clitoris; female circumcision. 

  • The surgical removal of the clitoris; clitoridectomy, usually referred to as female genital mutilation. 

doctor's

noun
  • A doctor’s surgery. 

How often have the words circumcision and doctor's occurred in a corpus of books? (source: Google Ngram Viewer )