spadefoot toad

noun
any of several nocturnal toads of the family Pelobatidae, common in the Northern Hemisphere, characterized by a horny, spadelike projection on each hind foot for burrowing under the soil.

Origin:
1865–70, Americanism

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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spadefoot toad

relatively smooth-skinned amphibian of either the Old World genus Pelobates or of the genera Scaphiopus and Spea of North America. All spadefoot toads are classified in the family Pelobatidae. Spadefoot toads have a broad, horny "spade" projecting from the inside of each hind foot and used by the animals in burrowing.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The plains spadefoot toad enters water only to mate.
Potholes are also important breeding grounds for many winged insects, and for amphibians such as the spadefoot toad.
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