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Noun: psittacosaurus
  1. Primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal
    - psittacosaur

Derived forms: psittacosauruses

Type of: ceratopsian, horned dinosaur

Part of: genus Psittacosaurus

Encyclopedia: Psittacosaurus