Bedeutung von “guinea pig” — Learner’s Dictionary

guinea pig

noun [ C ] us uk /ˈɡɪniˌpɪɡ/
ANIMAL

a small animal with fur and no tail that people sometimes keep as a pet

PERSON informal

someone who is used in a test for something such as a new medicine or product

(Definition von “guinea pig” aus dem Cambridge Learner's Dictionary © Cambridge University Press)