Tyrannosaurus

1 definition found

From WordNet (r) 2.0 [wn]:

  tyrannosaurus
       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 [syn: {tyrannosaur}, {Tyrannosaurus rex}]