bran vs flour

bran

noun
  • The broken coat of the seed of wheat, rye, or other cereal grain, separated from the flour or meal by sifting or bolting; the coarse, chaffy part of ground grain. 

  • The European carrion crow. 

flour

noun
  • Powder obtained by grinding or milling cereal grains, especially wheat, or other foodstuffs such as soybeans and potatoes, and used to bake bread, cakes, and pastry. 

  • Powder of other material. 

  • The food made by grinding and bolting cleaned wheat (not durum or red durum) until it meets specified levels of fineness, dryness, and freedom from bran and germ, also containing any of certain enzymes, ascorbic acid, and certain bleaching agents. 

  • Coordinate term: meal 

verb
  • To reduce to flour. 

  • To apply flour to something; to cover with flour. 

  • To break up into fine globules of mercury in the amalgamation process. 

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