paddlewheel vs rowing

paddlewheel

noun
  • A boat propelled by a paddlewheel. 

  • A large wheel fitted with thick slats, turned by an engine and used to propel a boat. 

rowing

noun
  • The action of propelling a boat with oars. 

  • The action of the verb to row. 

  • The rowing of boats as a competitive sport. 

  • The act of having a row, or argument. 

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