Also found in: Thesaurus, Encyclopedia.


 (brŏn′tə-sôr′əs) or bron·to·saur (brŏn′tə-sôr′)
An apatosaurus.

[New Latin Brontosaurus, former genus name : Greek brontē, thunder + Greek sauros, lizard.]


(ˈbrɒn təˌsɔr)

1. a huge sauropod dinosaur of the Jurassic genus Apatosaurus (formerly Brontosaurus), having a long, flexible neck and thick limbs.
2. any sauropod.
[< New Latin Brontosaurus (1879) = Greek bronto-, comb. form of brontḗ thunder + saûros -saur]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.brontosaur - huge quadrupedal herbivorous dinosaur common in North America in the late Jurassicbrontosaur - huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
sauropod, sauropod dinosaur - very large herbivorous dinosaur of the Jurassic and Cretaceous having a small head a long neck and tail and five-toed limbs; largest known land animal
genus Apatosaurus, genus Brontosaurus - large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic
References in periodicals archive ?
Instead you reach across the table and scoop the now twenty-four perfectly peeled segments of orange peel and create a brontosaur from them on the table.
Some 25 years ago, when skateboards were the size and weight of a brontosaur and Chi wasn't mumbling yet, a bunch of concrete was molded into trannys next to a beach in a town named Algorta.
A scholar of the eighteenth century once told me that the great brontosaur of English literature, Dr.
(1990): Did "Brontosaurus" ever swim out to sea?: evidence from brontosaur and other dinosaur footprints.