[ trʌɪ'sɛrətɒps ]
■ noun a large quadrupedal herbivorous dinosaur living at the end of the Cretaceous period, having a massive head with two large horns, a smaller horn on the beaked snout, and a bony frill above the neck.
Origin
mod. L., from Gk trikeratos 'three-horned' + ōps 'face'.