Definition of cavy
: any of several short-tailed rough-haired South American rodents (family Caviidae); especially : guinea pig
Origin and Etymology of cavy
New Latin Cavia, genus name, from obsolete Portuguese çavia (now sauiá) the spiny rat Makalata (Echimys) armata, from Tupi saujá
First Known Use: 1796See Words from the same year
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