snowcat vs snowmachine

snowcat

noun
  • A truck-like enclosed vehicle on tracks, designed to move on snow. 

  • A visual representation of a cat made from snow. 

snowmachine

noun
  • A vehicle that can travel through snow. 

  • A machine that makes snow, such as a snowgun 

  • A snowmobile. 

  • A machine that removes snow, such as a snowblower. 

  • A machine that grooms snow on ski runs and ski trails. 

verb
  • To travel by snowmachine. 

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