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hadrosaur

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noun had·ro·saur \ˈha-drə-ˌsȯr\

Definition of hadrosaur

  1. :  any of a family (Hadrosauridae) of medium-sized bipedal herbivorous dinosaurs of the Upper Cretaceous with long flat snouts and an often crested skull




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a jerking and twitching of the body

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