Tyrannosaurus rex

Definition

A giant carnivorous theropod dinosaur from the Cretaceous period.

Example Sentences

• "Some of the most spectacular beasts in East Coast museums happen to be Tyrannosaurus rexes from Montana."
• ""Now, Dr. Richgels, you picked a folder from the story box. Could you show us the one that you picked?" Mine shows two Tyrannosaurus rexes fighting […]"
• "So Lyell's view is not inconsistent with Dollo's Law of Irreversibility in that, under awful (i.e., evolutionary) changes, biological organisms would not follow the same unlikely path regenerating, say, DNA-exact Tyrannosaurus rexes from ancestral chicken stock in some future age."