noun

• A partly bipedal herbivorous dinosaur of the mid Cretaceous period, having a parrot-like beak and probably ancestral to other ceratopsians.

  Genus Psittacosaurus, infraorder Ceratopsia, order Ornithischia

  ‘Psittacosaurus, meaning 'parrot lizard,' was a small, primitive ceratopsian, a plant-eating dinosaur.’

  More example sentences

  • ‘The Psittacosaurus was a strong, agile dinosaur with a powerful beak. A plant-eater, it lived in northeastern Asia between 144 million and 97 million years ago.’