CERATOPSIAN

[cer.a.top.sian] n [NL Ceratopsia, fr. Ceratops, a genus, fr. Gk kerat-, keras horn + ops face--more at horn, eye] (1909): any of a suborder (Ceratopsia) of ornithiscian dinosaurs of the Late Cretaceous having horns, a sharp horny beak, and a bony frill projecting backward from the skull -- ceratopsian adj