duck-billed dinosaur

1 definition found

duck-billed dinosaur - WordNet (r) 2.1 (2005) :

  duck-billed dinosaur
      n 1: 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]