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guinea pig

noun

Simple Definition of guinea pig

  • : a small animal that is often kept as a pet

  • : a person or thing used for testing something

Source: Merriam-Webster's Learner's Dictionary

Full Definition of guinea pig

  1. 1 :  a small stout-bodied short-eared tailless domesticated rodent (Cavia porcellus) of South American origin often kept as a pet and widely used in biological research —called also cavy

  2. 2 :  a subject of research, experimentation, or testing

Examples of guinea pig in a sentence

  1. He volunteered to act as a guinea pig in the experiment.



1664

First Known Use of guinea pig

1664


GUINEA PIG Defined for Kids

guinea pig

noun

Definition of guinea pig for Students

  1. :  a small stocky South American animal that is a rodent with short ears and a very short tail and is often kept as a pet




Medical Dictionary

guinea pig

play
noun guin·ea pig \ˈgin-ē-ˌ\

Medical Definition of guinea pig

  1. :  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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