egestion vs occlusion

egestion

noun
  • The act or result of egesting 

occlusion

noun
  • The process of occluding, or something that occludes. 

  • Anything that obstructs or closes a vessel or canal. 

  • An occluded front. 

  • The absorption of a gas or liquid by a substance such as a metal. 

  • A closure within the vocal tract that produces an oral stop or nasal stop. 

  • The blocking of the view of part of an image by another. 

  • The alignment of the teeth when upper and lower jaws are brought together. 

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