| Noun | 1. | South American bullfrog - large toothed frog of South America and Central America resembling the bullfrog anuran, batrachian, frog, salientian, toad, toad frog - any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species genus Leptodactylus, Leptodactylus - type genus of the Leptodactylidae; in some classifications placed in the family Bufonidae |