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/ˌsɪtəkəˈsɔːɹəs/ · noun
Any of several dinosaurs, of the genus Psittacosaurus, that lacked horns.
Use psittacosaurus when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Psittacosaurus means Any of several dinosaurs, of the genus Psittacosaurus, that lacked horns.
Common synonyms include psittacosaur.
The opposite depends on the specific sense.
Use psittacosaurus where its definition matches the intended context.
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