plural noun Tes·tu·din·i·dae \ˌtest(y)üˈdinəˌdē\

Definition of Testudinidae

  1. :  a family of turtles comprising carnivorous freshwater and herbivorous terrestrial forms that usually have a strong thick convex carapace, broad plastron, and club-shaped feet in which the toes are firmly bound together so that the claws alone are evident — compare european tortoise, painted turtle

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Origin and Etymology of testudinidae

New Latin, from Testudin-, Testudo, type genus + -idae

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a rounded knoll or a ridge of ice

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