Brontosaurus \Bron`to*sau"rus\, n. [NL., fr. Gr. bronth` thunder
+ say^ros lizard.] (Paleon.)
A genus of large sauropod American dinosaurs of the jurassic
era, or an individual of that genus. A length of sixty feet
is believed to have been attained by these reptiles. The
genus is also called {Apatosaurus}, and individuals of the
genus are also called {brontosaurs}.
[1913 Webster +PJC]