D defs.my
Entry 1 sense Webster, 1913

Brontosaurus

/brônˌ-təs-ôr'-əs/ · Bron·to·sau·rus · IPA /brˌɔntəsˈɔrəs/
01 n. 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 hav…
  1. 1.
    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.(Paleon.) Also: Apatosaurus, brontosaurs