Noun: iguanodon i'gwaa-nu,dón
- Massive herbivorous bipedal dinosaur with a long heavy tail; common in Europe and northern Africa; early Cretaceous period
"The iguanodon's thumb spike was initially mistaken for a horn"
Derived forms: iguanodons
Type of: dino [informal], dinosaur
Part of: genus Iguanodon
Encyclopedia: Iguanodon