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

Derived forms: hadrosaurs

Type of: ornithischian, ornithischian dinosaur

Part of: family Hadrosauridae, Hadrosauridae

Encyclopedia: Hadrosaur