Hadrosaurus

2 definitions found

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

  Hadrosaurus \Had`ro*sau"rus\ (h[a^]d`r[-o]*s[add]"r[u^]s), n.
     [NL., fr. Gr. "adro`s thick + say^ros lizard.] (Paleon.)
     An American herbivorous dinosaur of great size, allied to the
     iguanodon. It is found in the Cretaceous formation.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

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