(n) primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal, Syn. psittacosaurus
{ } a. [ L. psittacus a parrot, Gr. &unr_;: cf. F. psittacide. ] (Zool.) Of or pertaining to the parrots, or the Psittaci. -- n. One of the Psittaci. [ 1913 Webster ]