a huge sauropod dinosaur of the genus Apatosaurus (formerly Brontosaurus) and closely related genera, of the Jurassic Period, having a massive body, a small head and long neck, and thick columnar limbs, and ranging up to 77 feet (23.5 meters) in length.
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How to use brontosaur in a sentence
He is a brontosaur: nine bones and six hundred barrels of plaster of Paris.What Is Man? And Other Stories | Mark Twain (Samuel Clemens)
The twenty-ton brontosaur had a brain no larger than that of a new-born human infant.The Story of Evolution | Joseph McCabe
The brontosaur, though only sixty feet long, probably weighed twenty tons.The Story of Evolution | Joseph McCabe
Again the ponderous amphibious brontosaur pushed through marshes.Futuria Fantasia, Summer 1939 | Ray Bradbury
He is a brontosaur: nine bones and six hundred barrels of plaster of paris.Is Shakespeare Dead? | Mark Twain