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| psit·ta·co·saur·us [ sìttəkō sáwrəss ] (plural psit·ta·co·saur·us·es) or psit·ta·co·saur [ síttəkə sàwr ] (plural psit·ta·co·saurs) |
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| Definition: |
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plant-eating dinosaur: a plant-eating dinosaur of the early Cretaceous period that walked on its hind legs and had a short deep head and a beak like a parrot's. Genus Psittacosaurus.
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| [Early 20th century. < modern Latin< Greek psittakos "parrot" + sauros "lizard"] |
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