hamster vs vole

hamster

noun
  • Any of various Old-World rodent species belonging to the subfamily Cricetinae. 

  • especially, the golden hamster, Mesocricetus auratus, and the dwarf hamsters of genus Phodopus, often kept as a pet or used in scientific research. 

  • Other rodents of similar appearance, such as the maned hamster or crested hamster, Lophiomys imhausi, mouse-like hamsters of genus Calomyscus, and the white-tailed rat (Mystromys albicaudatus). 

verb
  • To secrete or store privately, as a hamster does with food in its cheek pouches. 

vole

noun
  • Any of a large number of species of small rodents of the subfamily Arvicolinae of the family Cricetidae which are not lemmings or muskrats. 

  • A deal in a card game, écarté, that draws all the tricks. 

verb
  • To win all the tricks by a vole. 

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