Hadrosaurus

n.

1.

(Paleon.) An American herbivorous dinosaur of great size, allied to the iguanodon. It is found in the Cretaceous formation.

Noun

1.

hadrosaurus - any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic Synonyms: duck-billed dinosaur, hadrosaur

anatotitan, corythosaur, corythosaurus, duck-billed dinosaur, edmontosaurus, family Hadrosauridae, hadrosaur, Hadrosauridae, ornithischian, ornithischian dinosaur, trachodon, trachodont