seismosaur
/ˈsaɪzmoʊˌsɔr/
noun
- A very large dinosaur of the genus Seismosaurus, known for its enormous size and long neck.
- Children were amazed by the giant skeleton of a seismosaur at the natural history museum.
- The seismosaur is believed to have been one of the longest dinosaurs that ever lived.
- Scientists think the seismosaur used its long neck to reach leaves high in the trees.