Definition of protoceratops
: any of a genus (Protoceratops) of small herbivorous ceratopsian dinosaurs of the late Cretaceous that lacked horns
Origin of protoceratops
New Latin, from prot- + Ceratops, a genus — more at ceratopsian
First Known Use: 1979
Learn More about protoceratops
Britannica.com: Encyclopedia article about "protoceratops"
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