ampulla vs orifice

ampulla

noun
  • The dilated end of a duct. 

  • An Ancient Roman two-handled vessel. 

  • A vessel for containing consecrated wine or oil. 

  • The spongiole of a root. 

orifice

noun
  • A mouth or aperture, such as of a tube, pipe, etc.; an opening. 

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