hadrosaurus
NounOpen English WordNet
Noun (1)
- any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquaticSynonyms: hadrosaurduck-billed dinosaurType of ornithischian, ornithischian dinosaurKinds corythosaur, edmontosaurus, trachodon, anatotitanMember of Hadrosauridae, family Hadrosauridae
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Webster's Dictionary (1913)
Had′ro·sau′rus (hăd′rō-sa̤′rŭs), noun
Origin: NL., fr. Gr. ἁδρός thick + σαῦρος lizard.
Paleontology An American herbivorous dinosaur of great size, allied to the iguanodon. It is found in the Cretaceous formation.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54