Webster's Revised Unabridged Dictionary · 1913

Cavy

Cavy , noun

[New Latin cavia, from Brazilian cabiai: compare French cabiai.]

(Zoology) A rodent of the genera Cavia and Dolichotis, as the guinea pig (Cavia cobaya). Cavies are natives of South America.
Collocations (1)
Water cavy (Zoology) , The capybara.