abalone vs cochlea

abalone

noun
  • The meat of the aforementioned mollusc. 

  • An edible univalve mollusc of the genus Haliotis, having a shell lined with mother-of-pearl. 

cochlea

noun
  • A spiral-shaped shell, especially that of a snail. 

  • The complex, spirally coiled, tapered cavity of the inner ear of higher vertebrates, which contains the organ of Corti and in which sound vibrations are converted into nerve impulses. 

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