- Any of various tyrannosaurid dinosaurs of the genus Tyrannosaurus, having a large head and teeth and short forelimbs, and including T. rex and possibly some other species. Also called tyrannosaur.
- See T. rex.
Origin of tyrannosaurusNew Latin Tyrannosaurus, genus name : Greek turannos, tyrant + sauros, lizard.
Variant of tyrannosaur
any of a genus (Tyrannosaurus) of huge, two-footed, flesh-eating theropod dinosaurs of the Upper Cretaceous Period in North America and Asia
Origin of tyrannosaur; from Modern Latin Tyrannosaurus ; from Classical Greek tyrannos, tyrant + Modern Latin -saurus, -saurus