Noun: guinea pig
- Stout-bodied nearly tailless domesticated cavy; often kept as a pet and widely used in research
"The children loved feeding carrots to their pet guinea pig";
- Cavia cobaya
- A person who is subjected to experimental or other observational procedures; someone who is an object of investigation
"the guinea pigs for this investigation were selected randomly";
- subject, case
Derived forms: guinea pigs
Type of: actor, cavy, doer, worker
Encyclopedia: Guinea pig