From The Collaborative International Dictionary of English v.0.48 :
Iguanidae \Iguanidae\ n.
A natural family of New World lizards including the common
Iguana, Iguana iguana.
Syn: family Iguanidae.
[WordNet 1.5]
From The Collaborative International Dictionary of English v.0.48 :
Iguanoid \I*gua"noid\, a. [Iguana + -oid.] (Zool.)
Pertaining to the Iguanid[ae].
[1913 Webster]