frost vs snowpack

frost

noun
  • The cold weather that causes these ice crystals to form. 

  • A cover of minute ice crystals on objects that are exposed to the air. Frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing. 

  • Coldness or insensibility; severity or rigidity of character. 

  • A shade of white, like that of frost. 

  • A kind of light diffuser. 

verb
  • To cover with frost. 

  • To become covered with frost. 

  • To bleach individual strands of hair while leaving adjacent strands untouched. 

  • To anger or annoy. 

  • To sharpen (the points of a horse's shoe) to prevent it from slipping on ice. 

  • To coat (something, e.g. a cake) with icing to resemble frost. 

snowpack

noun
  • An accumulation of packed snow, usually the seasonal amount. 

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