brontosaurus Meaning, Definition & Usage
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noun huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
brontosaur; Apatosaurus excelsus; thunder lizard; apatosaurus; apatosaur.
WordNet
Bron`to*sau"rus noun
Etymology
NL., fr. Gr. thunder + lizard.Definitions
(Paleon.) A genus of American jurassic dinosaurs. A length of sixty feet is believed to have been attained by these reptiles.
