Noun: tyrannosaur ti'ra-nu,sor
- 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
"The tyrannosaur's tiny arms have long puzzled palaeontologists";
- tyrannosaurus, Tyrannosaurus rex
Derived forms: tyrannosaurs
Type of: bird-footed dinosaur, theropod, theropod dinosaur
Part of: genus Tyrannosaurus
Encyclopedia: Tyrannosaur