Hadrosaurus

Had`ro`sau´rus    (hăd`rô`sạ´rŭs)

n.

1.

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

Thesaurus

Noun

1.

hadrosaurus - any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic duck-billed dinosaur, hadrosaur ornithischian, ornithischian dinosaur - herbivorous dinosaur with a pelvis like that of a bird family Hadrosauridae, Hadrosauridae - duck-billed dinosaurs; upper Cretaceous anatotitan - one of the largest and most famous duck-billed dinosaurs corythosaur, corythosaurus - duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet edmontosaurus - duck-billed dinosaur from Canada found as a fossilized mummy with skin trachodon, trachodont - large duck-billed dinosaur of the Cretaceous period