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WordNet
true toad

n. tailless amphibian similar to a frog but more terrestrial and having drier warty skin

Wikipedia
True toad

The true toads are the familyBufonidae, members of the order Anura (frogs and toads). They are the only family of anurans in which all members are known as " toads", although some may be called frogs (such as harlequin frogs). The bufonids now comprise more than 35 genera, Bufo being the most widespread and well known.