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nounlarge carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; later Cretaceous period in North America
Similar:
Definition that contains tyrannosaurus
- allosaurus late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus
- allosaur late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus