tyrannosaurus/tɪˌɹænəˈsɔːɹəs/EtymologyFrom translingual Tyrannosaurus, from Ancient Greek τύραννος (túrannos, “tyrant”) + σαῦρος (saûros, “lizard”).tyrannosaurus means Any large carnivorous dinosaur, of the genus Tyrannosaurus, found in North America during the late Cretaceous period. Lexicurio rates it Rare gem — a strength score of 82 out of 100.nounAny large carnivorous dinosaur, of the genus Tyrannosaurus, found in North America during the late Cretaceous period.