-ˌdän noun
Usage: capitalized
Etymology: New Latin, from Spanish iguana + New Latin -odon
: a genus of large herbivorous ornithischian dinosaurs (type of a family Iguanodontidae) from the early Cretaceous of Belgium and England having the head compressed, the jaws probably provided with a horny covering in front like that of a turtle but with numerous spatulate serrated teeth farther back, and the forelimbs comparatively small and provided with large three-toed hind limbs used chiefly in walking and a large heavy tail which doubtless assisted in standing upright
• igua·no·dont -nt adjective or noun