'Hadrosauridae' definitions:
Definition of 'Hadrosauridae'
(from WordNet)
noun
Duck-billed dinosaurs; upper Cretaceous [syn: Hadrosauridae, family Hadrosauridae]
Definition of 'Hadrosauridae'
From: GCIDE
- Hadrosauridae \Hadrosauridae\ prop. n. A natural family of extinct reptiles including the duck-billed dinosaurs.
- Syn: family Hadrosauridae. [WordNet 1.5]