dome vs racetrack

dome

noun
  • A structural element resembling the hollow upper half of a sphere. 

  • A prism formed by planes parallel to a lateral axis which meet above in a horizontal edge, like the roof of a house; also, one of the planes of such a form. 

  • A geological feature consisting of symmetrical anticlines that intersect where each one reaches its apex. 

  • A person's head. 

  • head, oral sex 

  • Any erection resembling the dome or cupola of a building, such as the upper part of a furnace, the vertical steam chamber on the top of a boiler, etc. 

  • Anything shaped like an upset bowl, often used as a cover. 

verb
  • To shoot in the head. 

  • To give a domed shape to. 

  • To perform fellatio on. 

racetrack

noun
  • A characteristic circular erosion pattern in deposition processes. 

  • A course over which any type of races are run. 

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