The Collaborative International Dictionary of English v.0.48:
Iguania \Iguania\ n. A superfamily (or suborder) of New World lizards including the Iguanidae. Syn: family Iguania. [WordNet 1.5]WordNet (r) 3.0 (2006):
Iguania n 1: New World lizards [syn: Iguanidae, family Iguanidae, Iguania, family Iguania]