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A large herbivorous ornithiscian dinosaur of the genus Iguanodon of the Cretaceous Period, having a long broad snout with a horny beak, numerous small teeth, and a spike on each thumb.

[New Latin Iguanodōn, genus name : iguana + -odon.]


(Palaeontology) a massive herbivorous long-tailed bipedal dinosaur of the genus Iguanodon, common in Europe and N Africa in Jurassic and Cretaceous times: suborder Ornithopoda (ornithopods)
[C19: New Latin, from iguana + Greek odōn tooth]


(ɪˈgwɑ nəˌdɒn, ɪˈgwæn ə-)

a bipedal, plant-eating dinosaur, of the genus Iguanodon, that inhabited Europe in the early Cretaceous Period.
[< New Latin (1825) < Sp iguan(a) iguana + Greek -odṓn -toothed (see -odont)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.iguanodon - massive herbivorous bipedal dinosaur with a long heavy tailiguanodon - massive herbivorous bipedal dinosaur with a long heavy tail; common in Europe and northern Africa; early Cretaceous period
dinosaur - any of numerous extinct terrestrial reptiles of the Mesozoic era
genus Iguanodon - type genus of the Iguanodontidae