three-quarter bathroom vs toilet

three-quarter bathroom

noun
  • A bathroom with a toilet, sink, and shower stall but without a bathtub. 

toilet

noun
  • A small secondary lavatory having a fixture used for urination and defecation (i.e. a toilet (sense 2)) and sink but no bathtub or shower. 

  • A very shabby or dirty place. 

  • A fixture used for urination and defecation, particularly one with a large bowl and ring-shaped seat which uses water to flush the waste material into a septic tank or sewer system. 

  • A room or enclosed area containing a fixture used for urination and defecation (i.e. a toilet (sense 2)): a bathroom or water closet. 

verb
  • To use the toilet. 

  • To assist another (a child, etc.) in using the toilet. 

How often have the words three-quarter bathroom and toilet occurred in a corpus of books? (source: Google Ngram Viewer )