noun brach·i·o·saur \ˈbra-kē-ō-ˌsȯr\

Definition of brachiosaur

  1. :  any of a genus (Brachiosaurus) of very large sauropod dinosaurs of the Late Jurassic period having a massive body, a very long neck, and forelegs longer than hind legs

Origin and Etymology of brachiosaur

New Latin Brachiosaurs, from brachi- + Greek sauros lizard

First Known Use: 1912

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