\I*gua"no*don\, n. [Iguana + Gr. ?, ?, a tooth.]
(Paleon.)
A genus of gigantic herbivorous dinosaurs having a birdlike
pelvis and large hind legs with three-toed feet capable of
supporting the entire body. Its teeth resemble those of the
iguana, whence its name. Several species are known, mostly
from the Wealden of England and Europe. See Illustration in
Appendix.