guinea pig

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guin・ea

━━ n. ギニー金貨.
 guinea fowl　ホロホロチョウ.
 guinea hen　ホロホロチョウの雌.
 guinea pig　テンジクネズミ; ((俗にいう)) モルモット; 実験材料になる人.

guinea pig 

Pronunciation:

NOUN

1A domesticated tailless South American cavy, originally raised for food. It no longer occurs in the wild and is now typically kept as a pet or for laboratory research.

• Cavia porcellus, family Caviidae.

Example sentences

1.1A person or thing used as a subject for experiment.