Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun corythosaur

1 sense of corythosaur

Sense 1
corythosaur, corythosaurus -- (duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet)
       => hadrosaur, hadrosaurus, duck-billed dinosaur -- (any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic)