The Collaborative International Dictionary
Iguanian
Iguanian \I*gua"ni*an\, a. (Zo["o]l.) Resembling, or pertaining to, the iguana.
Wiktionary
iguanian
a. Of or pertaining to the suborder ''Iguania''. n. Any of the suborder ''Iguania'' of iguanas, chameleons, agamids, and "New World lizards".