atomizer vs waterer

atomizer

noun
  • An instrument for reducing a liquid to spray or vapor for disinfecting, cooling, medical use or perfume spraying. 

waterer

noun
  • A device used for watering. 

  • A device from which livestock, poultry, or pets may drink. 

  • One who waters plants. 

  • One who waters down, or dilutes, something. 

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