snowfield vs whiteout

snowfield

noun
  • A large permanent expanse of snow on a mountain or at the head of a glacier. 

whiteout

noun
  • A heavy snowstorm; a blizzard. 

  • A sporting event where all in attendance are urged to wear white apparel. 

  • Any weather condition in which visibility and contrast are severely reduced by snow or sand causing the horizon and physical features of the terrain to disappear. 

  • The suppression of a story by the media, analogously to deleting information with correction fluid. 

  • The simulated erasure of a file, etc. on a read-only volume. 

  • The silencing of voices and perspectives other than those of white men. 

  • Correction fluid (from the brand name Wite-Out). 

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