ambulance vs sickroom

ambulance

noun
  • A mobile field hospital. 

  • An emergency vehicle designed for transporting seriously ill or injured people to a hospital. 

verb
  • To transport by ambulance. 

sickroom

noun
  • A room to be used by someone who is ill. 

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