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Definition of iguanodon
: any of a genus (Iguanodon) of very large herbivorous dinosaurs of the Early Cretaceous
From the M-W Editors
Origin and Etymology of iguanodon
New Latin Iguanodont-, Iguanodon, from Spanish iguana + Greek odōn tooth, from odont-, odous — more at tooth
Learn More about iguanodon
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Britannica.com: Encyclopedia article about iguanodon
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