- tyrannosaur, tyrannosaurus, Tyrannosaurus rex - 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
--1 is a kind of theropod, theropod dinosaur, bird-footed dinosaur
--1 is a member of genus Tyrannosaurus