tolling vs uvula

tolling

noun
  • The act by which a bell is tolled. 

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 tolling and uvula occurred in a corpus of books? (source: Google Ngram Viewer )