BRONTOSAURUS Meaning of BRONTOSAURUS in English [ ˌbrɒntə'sɔ:rəs ](also brontosaur 'brɒntəsɔ: ) ■ noun another term for apatosaurus .Originmod. L. (former genus name), from Gk brontē 'thunder' + sauros 'lizard'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004