harvest mite vs organ

harvest mite

noun
  • Any of various mites of the genus Trombicula that inhabit forests and grasslands and which, in their larval stage, attach to various animals including humans and feed on skin, often causing itching. 

organ

noun
  • The larger part of an organism, composed of tissues that perform similar functions. 

  • A government organization; agency; authority. 

  • A musical instrument that has multiple pipes which play when a key is pressed (the pipe organ), or an electronic instrument designed to replicate such. 

  • A body of an organization dedicated to the performing of certain functions. 

  • An official magazine, newsletter, or similar publication of an organization. 

  • An Asian form of mitrailleuse. 

  • The penis. 

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