noun see: ceratopsian Date: 1979 any of a genus ( Protoceratops ) of small herbivorous ceratopsian dinosaurs of the late Cretaceous that lacked horns
PROTOCERATOPS
Meaning of PROTOCERATOPS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012