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guinea pig

3 ENTRIES FOUND:
  1. guinea pig (noun)
  2. guinea worm (noun)
  3. guinea worm disease (noun)

guin·ea pig

noun \ˈgin-ē-ˌ\

Definition of GUINEA PIG

: a small stout-bodied short-eared nearly tailless domesticated rodent of the genus Cavia (C. cobaya) often kept as a pet and widely used in biological research—called also cavy

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