guinea pig
Explore definitions, synonyms, and language insights of guinea pig
Definitions
                    Noun
                    
                a person who is subjected to experimental or other observational procedures; someone who is an object of investigation; "the subjects for this investigation were selected randomly"; "the cases that we studied were drawn from two different communities"
                
                    Noun
                    
            stout-bodied nearly tailless domesticated cavy; often kept as a pet and widely used in research