noun
also cap·i·bara ˌkapə̇ˈbarə, -ärə ; or cap·i·vara -ˈv-
( -s )
Etymology: Portuguese capibara, from Tupi
: an edible So. American rodent ( Hydrochoerus capybara ) that reaches in maturity over four feet in length and is the largest rodent in existence, is largely aquatic in habit having partly webbed feet, has no tail, has coarse fur, and somewhat resembles the guinea pig to which it is related