guinea pig
/ˈɡɪni pɪɡ/IPA: /G IH1 N IY0 P IH1 G/
noun
- 1
A tailless rodent of the family Caviidae and the genus Cavia, with short ears and larger than a hamster; the species Cavia porcellus is often kept as a pet.
syn:cavy - 2
A rodent of any of several species within the family Caviidae.
- 3
A living experimental subject.
“He became a human guinea pig and was paid by the company.”
syn:lab rat - 4
A professional company director, without time or real qualifications for the duties.
- 5
A midshipman in the East India service; (by extension) a low-skilled or non-proficient seaman.
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