ampulla vs geode

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. 

geode

noun
  • A nodule of stone having a cavity lined with mineral or crystal matter on the inside wall. 

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