ceratosaur

[ ser-uh-tuh-sawr ]
/ ˈsɛr ə təˌsɔr /

noun

a carnivorous, swift-running North American theropod dinosaur of the genus Ceratosaurus and closely related genera, of the Jurassic Period, having a large skull with a short horn between the nostrils and a bony knob in front of each eye, and reaching a length of 20 feet (6.1 meter).

Origin of ceratosaur

1884; < New Latin Ceratosaurus; see cerato-, -saur