[bron.to.sau.rus] also bron.to.saur n [NL, fr. Gk bronte thunder + sauros lizard; akin to Gk bremein to roar] (1905): any of a genus (Apatosaurus syn. Brontosaurus) of large sauropod dinosaurs of the Jurassic--called also apatosaurus
BRONTOSAURUS
Meaning of BRONTOSAURUS in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012