- ceratopsian⇄adj. of or having to do with ceratopsians or the ceratops.
- ceratopsian⇄ceratopsian, noun, adjective.
- ceratopsian⇄noun any one of a group of horned, herbivorous dinosaurs of the Cretaceous period, including the triceratops.
Ex. Ceratopsians looked much like rhinoceroses, but many ... were larger (S. P. Welles).