guinea pig

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. 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
• Syn:
subject, case
• Derivationally related forms:
subject (for: subject)
• Hypernyms:
person, individual, someone, somebody, mortal, soul
2. stout-bodied nearly tailless domesticated cavy;
often kept as a pet and widely used in research
• Syn:
Cavia cobaya
• Hypernyms:
cavy