agriculturalist vs mower

agriculturalist

noun
  • A farmer; one involved with agrarian business. 

  • An expert in agriculture who advises farmers. 

mower

noun
  • A farm machine used in hay production (sickle mower, finger-bar mower). 

  • A lawnmower, a machine used to cut grass on lawns. 

  • A person who cuts grass. 

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