This species was the largest carnivore in its environment and able to bite with more force than any other land animal. The Latin word �rex� means �king� in English, because this animal was the most feared of all animals. Their Greek name �tyranno-saurus� means �tyrant-lizard� in English. The Tyrannosaurus is a member of the dinosaur group and the scientific term for them is T. Interesting Facts about the TYRANNOSAURUS Rex