bullfrog

(-frôg′)

noun

a large North American ranid frog (Rana catesbeiana) that has a deep, loud croak

Origin: bull- + frog

See bullfrog in American Heritage Dictionary 4

noun
Any of several large, heavy-bodied frogs, chiefly of the genus Rana and especially R. catesbeiana, native to North America and having a characteristic deep resonant croak.

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