ceratosaur: Meaning and Definition of

cer•a•to•saur

1. 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 ft. (6.1 m).