Definition of iguanodon noun from the Oxford Advanced Learner's Dictionary

 

iguanodon

 noun
noun
BrE BrE//ɪˈɡwɑːnədɒn//
 
; NAmE NAmE//ɪˈɡwɑːnədɑːn//
 
 
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a large dinosaur Word Originmodern Latin, from iguana + Greek odous, odont- ‘tooth’ (because its teeth resemble those of the iguana).
See the Oxford Advanced American Dictionary entry: iguanodon