noun
huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
• Syn: ↑apatosaur, ↑apatosaurus, ↑brontosaurus, ↑thunder lizard, ↑Apatosaurus excelsus
• Hypernyms: ↑sauropod, ↑sauropod dinosaur
• Member Holonyms: ↑genus Apatosaurus, ↑genus Brontosaurus
Useful english dictionary. 2012.