psittacosaurus

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/ˌsɪtəkəˈsɔːɹəs/

noun

Any of several dinosaurs, of the genus Psittacosaurus, that lacked horns

Similar
psittacosaur
OriginAncient Greek ψιττακός →
Scrabble 18
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Meanings

nounpsittacosaurus (plural psittacosauruses)

plural psittacosauruses

  1. Any of several dinosaurs, of the genus Psittacosaurus, that lacked horns

Synonyms & antonyms

nounprimitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal

Similar
psittacosaur
Broader
ceratopsianhorned dinosaur
Also see
psittacosaur

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Ancient Greekσαύρα“lizard”
  2. Ancient Greekψιττακός“parrot”
  3. Englishpsittacosaurus

Coined in 1923 by Henry Fairfield Osborn from Ancient Greek ψιττακός (psittakós, “parrot”) + Ancient Greek σαύρα (saúra, “lizard”), due to its parrot-like beak

More words from Ancient Greek

Full word history & related roots →
Cite this entry
APA

psittacosaurus. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/psittacosaurus

MLA

“psittacosaurus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/psittacosaurus. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “psittacosaurus,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/psittacosaurus.

Source: psittacosaurus on Wiktionary, CC BY-SA 4.0.