ティラノサウルスレックスMeanings1nounTyrannosaurus rex; T. rexRefers to the well-known carnivorous dinosaur. The name is a direct loan from scientific Latin.博はく物ぶつ館かんでティラノサウルスレックスの化か石せきを見みた。I saw a Tyrannosaurus rex fossil at the museum.