iguanodon
noun
iguan·odon
i-ˈgwä-nə-ˌdän 
: any of a genus (Iguanodon) of very large herbivorous dinosaurs of the Early Cretaceous
Examples of iguanodon in a Sentence
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Top image: Pictured is the iguanodon fossil to be auctioned soon.
—
Kristen Rogers, CNN, 12 Sep. 2022
However, there is evidence that tyrannosaurids, like the T-Rex, suffered from gout and that iguanodons may have had osteoarthritis.
—Katie Hunt, CNN, 13 Feb. 2020
Fostoria was an herbivore that stood on its hind legs and belonged to the same group of dinosaurs as iguanodons.
—Ashley Strickland, CNN, 4 June 2019
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Kristen Rogers, CNN, 12 Sep. 2022
However, there is evidence that tyrannosaurids, like the T-Rex, suffered from gout and that iguanodons may have had osteoarthritis.
—Katie Hunt, CNN, 13 Feb. 2020
Fostoria was an herbivore that stood on its hind legs and belonged to the same group of dinosaurs as iguanodons.
—Ashley Strickland, CNN, 4 June 2019
Cite this Entry
“Iguanodon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/iguanodon. Accessed 22 Jul. 2025.
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iguanodon
noun
iguan·odon
i-ˈgwän-ə-ˌdän
: a large plant-eating dinosaur of the Cretaceous period that usually walked on all four legs
Etymology
from Spanish iguana "iguana" and Greek odōn "tooth"
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