- any large carnivorous bipedal dinosaur of the genus Tyrannosaurus, common in North America in upper Jurassic and Cretaceous times: suborder Theropoda (theropods)
Examples from the Web for tyrannosaurus
But in the case of U.S. v. Eric Prokopi, the Tyrannosaurus bataar has become the victim—of kidnapping.Stopping the Million-Dollar Fossil Thieves: Illegal Trade Meets World of Insatiable Research
June 11, 2014
Shuffling around the ring he has the footwork of a tyrannosaurus.Vitali Klitschko Contemplates Bowing Out of the Ring and Entering Ukrainian Politics
March 26, 2013
The buried lede in this intriguing story on how Tyrannosaurus Rex consumed its legendary prey?The Dainty Tyrannosaurus Rex
October 29, 2012
The head of something like a Tyrannosaurus Rex peered over the wall at them.Subjectivity
I'd be honored if you'd use my home as a base of operations while you hunt for your tyrannosaurus.
So far they had seen nothing of their prey—the tyrannosaurus.
We were searching for him when we were attacked by a tyrannosaurus.
It was his only chance should the snake get loose from the tyrannosaurus again.
Word Origin and History for tyrannosaurus
carnivorous Cretaceous bipedal dinosaur, 1905, Modern Latin genus name, coined by H.F. Osborn (published 1906 in "Bulletin of the American Museum of Natural History" XXI, p.259) from Greek tyrannos "tyrant" (see tyrant) + -saurus. Abbreviated name T. rex attested by 1970 (apparently first as the band name).