Dictionary
cer•a•to•saur
Pronunciation: (ser'u-tu-sôr"), [key]—
n.
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).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.