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Comprehensive
Dictionary Suite
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brontosaur a huge, herbivorous dinosaur of the Jurassic and Cretaceous periods.
duck-billed dinosaur any dinosaur of the Hadrosauridae family, having a broad, flat snout for grazing.
hadrosaur any dinosaur of the Hadrosauridae family, having a broad, flat snout for grazing; also known as a "duck-billed dinosaur."
theropod any dinosaur of the suborder Theropoda, such as Tyrannosaurus and Velociraptor, characterized by hollow bones and three-toed limbs, usually possessing short forelimbs and walking on two legs.
Theropoda a suborder of dinosaur characterized by hollow bones and three-toed limbs.
T. rex shortened form of "Tyrannosaurus rex," a large carnivorous North American dinosaur of the Cretaceous period that had small forelimbs and walked on its hind legs; tyrannosaur.
Tyrannosaur a large carnivorous North American dinosaur of the Cretaceous period that had small forelimbs and walked on its hind legs; Tyrannosaurus rex.
Tyrannosaurus rex a large carnivorous North American dinosaur of the Cretaceous period that had small forelimbs and walked on its hind legs (often shortened to "T. rex"); Tyrannosaur.
velociraptor a carnivorous, bipedal dinosaur of the genus Velociraptor, having feathers, a long tail, and a sickle-shaped claw on each hind foot.