incubator vs thermostat

incubator

noun
  • Any apparatus used to maintain environmental conditions suitable for a reaction. 

  • An apparatus used to maintain environmental conditions suitable for a newborn baby. 

  • A place to maintain the culturing of bacteria at a steady temperature. 

  • A support programme for the development of entrepreneurial companies. 

  • An apparatus used to maintain environmental conditions suitable for the hatching of eggs. 

thermostat

noun
  • A device that automatically responds to changes in temperature by activating a heating or cooling system to maintain the temperature at a desired setting. 

  • An algorithm used to maintain a simulated system at a set temperature by absorbing or releasing heat 

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