 brontosaur |
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| 1. | [ noun ] (zoology) huge quadrupedal herbivorous dinosaur common in N. America in the late Jurassic | |
| Synonyms: | apatosaurus brontosaurus thunder_lizard Apatosaurus_excelsus apatosaur | |
| Related terms: | sauropod genus_Apatosaurus | |
| Similar spelling: |
brontosaurus bryanthus |
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