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Ornithomimus

noun
Or·​nitho·​mi·​mus | \ -ˈmīməs\

Definition of Ornithomimus

: a genus (the type of the family Ornithomimidae) of small slender theropod dinosaurs of the Upper Cretaceous having toothless jaws and a birdlike skeleton

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History and Etymology for Ornithomimus

New Latin, from ornith- + -mimus

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