bulb vs lampshade

bulb

noun
  • A light bulb (not necessarily bulbous in shape). 

  • Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end. 

  • A bulbous protuberance at the forefoot of certain vessels to reduce turbulence. 

  • The bulb-shaped root portion of a plant such as a tulip, from which the rest of the plant may be regrown. 

verb
  • To take the shape of a bulb; to swell. 

lampshade

noun
  • A cover over a lamp to either diffuse the light or to block it in certain directions to avoid glare in the eyes. 

verb
  • To wear an oversize top with skintight thigh-high boots and no leggings. 

  • To design or create lampshades. 

  • To intentionally call attention to the improbable, incongruent, or clichéd nature of an element or situation featured in a work of fiction within the work itself. 

  • To adorn with one or more lampshades. 

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