Also found in: Thesaurus, Encyclopedia, Wikipedia.
Related to tyrannosaurus: Tyrannosaurus bataar


 (tĭ-răn′ə-sôr′əs, tī-)
1. Any of various tyrannosaurid dinosaurs of the genus Tyrannosaurus, having a large head and teeth and short forelimbs, and including T. rex and possibly some other species. Also called tyrannosaur.
2. See T. rex.

[New Latin Tyrannosaurus, genus name : Greek turannos, tyrant + sauros, lizard.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(tɪˌrænəˈsɔːrəs) or


(Palaeontology) any large carnivorous bipedal dinosaur of the genus Tyrannosaurus, common in North America in upper Jurassic and Cretaceous times: suborder Theropoda (theropods)
[C19: from New Latin, from Greek turannos tyrant + sauros lizard]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(tĭ-răn′ə-sôr′əs) also ty·ran·no·saur (tĭ-răn′ə-sôr′)
A very large meat-eating dinosaur of the Cretaceous Period. It had very small forelimbs and a large head with sharp teeth. It walked on two legs, probably bent forward with its long tail stretched out as a counterbalance. Tyrannosaurs grew to lengths of 47 feet (14.3 meters) or more.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tyrannosaurus - large carnivorous bipedal dinosaur having enormous teeth with knifelike serrationstyrannosaurus - large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; later Cretaceous period in North America
bird-footed dinosaur, theropod, theropod dinosaur - any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
genus Tyrannosaurus - includes a single species
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

tyrannosaurus (rex)

nTyrannosaurus rex m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in classic literature ?
It's a tyrannosaurus. Saw picture of skeleton in magazine.
Always, everywhere, man is man, nor has he altered greatly beneath his veneer since he scurried into a hole between two rocks to escape the tyrannosaurus six million years ago.
Many dinosaur bones, including those of Tyrannosaurus rex and its relatives, show growth rings, just as trees do, says Gregory M.
That makes it slightly bigger than the largest known Tyrannosaurus rex, and "maybe a little bit heavier," Sereno says.
American authorities have seized the skeleton of a Tyrannosaurus Bataar - a dinosaur from the Cretaceous period - following the verdict of a lawsuit that claimed the skeleton belonged to the Mongolian state.
Wellington, May 9 ( ANI ): A 23-year-old man in the US has legally changed his name after the largest land carnivore dinosaur, Tyrannosaurus Rex.
While Tyrannosaurus Rex sums up the image of reeking terror by ripping flesh away with powerful jaws, many of his relatives were happier munching on plants.
The dinosaur shares several traits with Tyrannosaurus rex, which lived about 95 million years later.
Tyrannosaurus rex, get ready to turn your "king of the dinosaurs" crown over to Giganotosaurus carolinii!
The feathered meat-eating dinosaur lived about 125 million years ago, long before Tyrannosaurus rex, and is estimated to have weighed a whopping 1,400kg as an adult, the BBC reported.
But having a Tyrannosaurus rex skeleton in your closet will set you back a monster pounds 4.8million when it's auctioned next month.