clatter vs rales

clatter

noun
  • A rattling noise; a repetition of abrupt, sharp sounds. 

  • A loud disturbance. 

  • Noisy talk or chatter. 

verb
  • To hit; to smack. 

  • To make a rattling sound. 

  • To chatter noisily or rapidly. 

rales

noun
  • Abnormal clicking, rattling or crackling sound heard from the lungs, often audible only with a stethoscope. 

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