tintinnabulum vs uvula

tintinnabulum

noun
  • A small clinking bell, particularly (historical) a small bell used to call monks to certain tasks. 

  • A set of bells or metal plates used as a musical instrument or as a toy. 

uvula

noun
  • an object so suspended inside a bell that it may hit the bell and cause it to ring; a clapper 

  • the slight elevation in the mucous membrane immediately behind the internal urethral orifice of the urinary bladder, caused by the middle lobe of the prostate 

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