from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A large carnivorous dinosaur, of the genus Tyrannosaurus, found in North America during the late Cretaceous period.
from The Century Dictionary and Cyclopedia
- n. A great carnivorous dinosaur from the Upper Cretaceous (Laramie) of North America, characterized by its small fore limbs, greatly elongated hind limbs inclosing large hollow cavities, and huge serrated teeth of which thirteen are present in the upper jaw and twelve or thirteen in the dentary. This dinosaur walked erect, as a biped, supporting the weight of the body on the hind limbs and tail.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; later Cretaceous period in North America
From Ancient Greek τύραννος (turannos, "tyrant") + σαῦρος (sauros, "lizard"). (Wiktionary)