bran vs kibble

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. 

kibble

noun
  • Something that has been kibbled, especially grain for use as animal feed. 

  • An iron bucket used in mines for hoisting anything to the surface. 

  • In the Transformers fandom, pieces of a toy or figure necessary for one mode, but appearing out of place or unnecessary in the other. 

  • Any artificial animal feed in pellet form. 

verb
  • To grind coarsely. 

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