bron·to·saur·us
(brŏn′tə-sôr′əs) or bron·to·saur (brŏn′tə-sôr′)n.
An apatosaurus.
[New Latin Brontosaurus, former genus name : Greek brontē, thunder + Greek sauros, lizard.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
bron•to•saur
(ˈbrɒn təˌsɔr)n.
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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  brontosaur - huge quadrupedal herbivorous dinosaur common in North America in the late Jurassicsauropod, 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 |
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