History
History
History
UK
US
Meaning:

a short-eared animal like a big rat, often used in experiments; a person allowing herself or himself to be used in medical or other experiments

experimental subject

rodent Cavia porcellus cavy examinee experimental animal experimental subject lab animal lab rat laboratory animal subject test animal test subject testee victim
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GUINEA-PIG as in Wiktionary
GUINEA-PIG as in Wikipedia