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| ty·ran·no·saur [ ti ránnə sàwr ] (plural ty·ran·no·saurs) or ty·ran·no·saur·us [ ti rànnə sáwrəss ] (plural ty·ran·no·saur·us·es) or ty·ran·no·saur·us rex [ ti rànnə sàwrəss réks ] (plural ty·ran·no·saur·us rex·es) |
noun |
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| Definition: |
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large dinosaur: a large fierce flesh-eating dinosaur that walked on powerful hind legs and had small forelegs. It lived during the Cretaceous Period and was the largest carnivore.
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| [Early 20th century. < modern Latin Tyrannosaurus< Greek turannos "tyrant" + sauros "lizard"] |
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