|brachiosaurus (ˌbreɪkɪəˈsɔːrəs, ˌbræk-)|
|See also sauropod a dinosaur of the genus Brachiosaurus, up to 30 metres long: the largest land animal ever known|
|brachiosaurus (brā'kē-ə-sôr'əs) or brachiosaur (brā'kē-ə-sôr'əs) Pronunciation Key
A very large sauropod dinosaur of the genus Brachiosaurus of the Jurassic and Cretaceous Periods. It had forelegs that were longer than its hind legs, and nostrils on top of its head.