enema vs evacuant

enema

noun
  • An injection of fluid into the large intestine by way of the rectum, usually for medical purposes. 

  • The fluid so injected. 

  • A device for administering such an injection. 

evacuant

noun
  • something used to clean out an organ system, especially the bowels 

  • a laxative 

adj
  • laxative 

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