ty·ran·no·saur·us

(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.

tyrannosaurus

(tɪˌrænəˈsɔːrəs) or

tyrannosaur

(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

ty·ran·no·sau·rus

(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:

Noun

tyrannosaurus - 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

tyrannosaur, Tyrannosaurus rex

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

Translations

Tyrannosaurus

τυραννόσαυρος

tiranosaurio

tyrannosaure

tyranozaur

tyrannosaurus (rex)

n → Tyrannosaurus 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

Mentioned in

References in classic literature

It's a tyrannosaurus. Saw picture of skeleton in magazine.

View in context

HERE LIES JOHN TIPPET ENGLISHMAN KILLED BY TYRANNOSAURUS 10 SEPT., A.D.

View in context

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.

View in context

Many dinosaur bones, including those of Tyrannosaurus rex and its relatives, show growth rings, just as trees do, says Gregory M.

Rarity of fossils of young tyrannosaurs explained

That makes it slightly bigger than the largest known Tyrannosaurus rex, and "maybe a little bit heavier," Sereno says.

Family feud

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.

US man changes name to T-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.

Dinosaurs were mainly vegetarian; STUDY

The dinosaur shares several traits with Tyrannosaurus rex, which lived about 95 million years later.

Ancestor of kings: early progenitor of T. rex had a crest

Tyrannosaurus rex, get ready to turn your "king of the dinosaurs" crown over to Giganotosaurus carolinii!

Move over, T. rex!

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.

Largest feathered dinosaur found in China

But having a Tyrannosaurus rex skeleton in your closet will set you back a monster pounds 4.8million when it's auctioned next month.

For sale: second-hand dinosaur, vgc for year, priced to sell at only pounds 4.8m; T REX SKELETON TO BE AUCTIONED