'hadrosaur' definitions:
Definition of 'hadrosaur'
From: WordNet
noun
Any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic [syn: hadrosaur, hadrosaurus, duck-billed dinosaur]
Definition of 'hadrosaur'
From: GCIDE
- hadrosaur \hadrosaur\ n. Any member of the genus Hadrosaurus or family Hadrosauridae, an extinct family of heavy bipedal partly aquatic dinosaurs with duck-billed skull and webbed feet; of the Upper Cretaceous in North America.
- Syn: hadrosaurus. [WordNet 1.5]