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| al·ber·to·saur·us [ al bùrtə sáwrəss ] (plural al·ber·to·saur·us·es) or al·ber·to·saur [ al búrtə sàwr ] (plural al·ber·to·saurs) |
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| Definition: |
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N American dinosaur: a North American flesh-eating dinosaur that lived about 70 million years ago. It stood on its hind legs, was about 9 m (30 ft) long, and weighed around 3,000 kg (3 tons). Genus Albertosaurus.
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| [Late 19th century. <Alberta + Greek sauros "lizard"] |
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