exocarp vs peeling

exocarp

noun
  • The outermost layer of the pericarp of fruits; the skin or epicarp 

peeling

noun
  • The act of removing the outer surface in strips. 

  • Strips of an outer rind or surface that has been removed. 

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