guinea-pig

Founding-era definition · Webster's 1828 American Dictionary

GUIN'EA-PIG, noun In zoology, a quadruped of the genus Cavia or cavy, found in Brazil. It is about seven inches in length, and of a white color, variegated with spots of orange and black.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI

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