apatosaurus : Idioms & Phrases
apatosaurus excelsus
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noun huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
brontosaur; thunder lizard; apatosaurus; brontosaurus; apatosaur.
WordNet
genus apatosaurus
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noun large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic
genus Brontosaurus.