noun
widespread group including duck-billed dinosaurs and their early relatives (hadrosaurs, trachodon and iguanodon)
• Syn: ↑Euronithopoda, ↑euronithopod, ↑Ornithopoda, ↑suborder Ornithopoda
• Hypernyms: ↑animal order
• Member Holonyms: ↑Ornithischia, ↑order Ornithischia
• Member Meronyms:
Useful english dictionary. 2012.