Main Entry: cer·a·top·sian

Pronunciation: \ˌsər-ə-ˈtäp-sē-ən\

Function: noun

Etymology: New Latin Ceratopsia, from Ceratops, a genus, from Greek kerat-, keras horn + ōps face — more at horn, eye

Date: 1909

: any of a suborder (Ceratopsia) of ornithischian dinosaurs of the Late Cretaceous having horns, a sharp horny beak, and a bony frill projecting backward from the skull

— ceratopsian adjective