Hadrosaur

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [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]

From WordNet (r) 2.0 [wn]:

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