Tyrannosaurus

tyrannosaurus

tyrannosaurus Any of several species of large, bipedal, carnivorous, theropod dinosaurs that lived during late Cretaceous times. Its head, 1.2m (4ft) long, was armed with a series of dagger-like teeth. The hind legs were stout and well developed, but the forelegs may have been useless except for grasping at close range. The best-known species is T. rex. Length: 14m (47ft); height: 6.5m (20ft).

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"tyrannosaurus." World Encyclopedia. 2005. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"tyrannosaurus." World Encyclopedia. 2005. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O142-tyrannosaurus.html

"tyrannosaurus." World Encyclopedia. 2005. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-tyrannosaurus.html

Learn more about citation styles

tyrannosaur

ty·ran·no·saur / təˈranəˌsôr/ (also tyrannosaurus / təˌranəˈsôrəs/ ) • n. a very large bipedal carnivorous dinosaur (family Tyrannosauridae, infraorder Carnosauria, suborder Theopoda) of the late Cretaceous period, with powerful jaws and small clawlike front legs.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"tyrannosaur." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"tyrannosaur." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O999-tyrannosaur.html

"tyrannosaur." The Oxford Pocket Dictionary of Current English. 2009. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-tyrannosaur.html

Learn more about citation styles

Tyrannosaurus rex

Tyrannosaurus rex (order Saurischia, suborder Theropoda) A giant, carnivorous dinosaur which lived during the Upper Cretaceous in N. America and possibly in Asia. Individuals grew to 12 m in length, 5 m tall, and weighed about 7 tonnes. The name means ‘king of the tyrant lizards’, but T. rex was probably a scavenger with a top speed of 16–40 km/h.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

MICHAEL ALLABY. "Tyrannosaurus rex." A Dictionary of Zoology. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "Tyrannosaurus rex." A Dictionary of Zoology. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O8-Tyrannosaurusrex.html

MICHAEL ALLABY. "Tyrannosaurus rex." A Dictionary of Zoology. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-Tyrannosaurusrex.html

Learn more about citation styles

tyrannosaur

tyrannosaur a very large bipedal carnivorous dinosaur of the late Cretaceous period, with powerful jaws and small claw-like front legs; Tyrannosaurus rex is the best-known species. The name is modern Latin, and is formed from Greek turannos ‘tyrant’ + sauros ‘lizard’, on the pattern of dinosaur.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

ELIZABETH KNOWLES. "tyrannosaur." The Oxford Dictionary of Phrase and Fable. 2006. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

ELIZABETH KNOWLES. "tyrannosaur." The Oxford Dictionary of Phrase and Fable. 2006. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O214-tyrannosaur.html

ELIZABETH KNOWLES. "tyrannosaur." The Oxford Dictionary of Phrase and Fable. 2006. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O214-tyrannosaur.html

Learn more about citation styles

Tyrannosaurus rex

Tyrannosaurus rex Giant, carnivorous dinosaur which lived during the Upper Cretaceous in N. America and possibly in Asia. Individuals grew to 12 m in length, 5 m tall, and weighed about 7 tonnes. The apt name means ‘king of the tyrant lizards’.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

AILSA ALLABY and MICHAEL ALLABY. "Tyrannosaurus rex." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "Tyrannosaurus rex." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-Tyrannosaurusrex.html

AILSA ALLABY and MICHAEL ALLABY. "Tyrannosaurus rex." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Tyrannosaurusrex.html

Learn more about citation styles

tyrannosaurus

tyrannosaurusArras, embarrass, harass •gynandrous, polyandrous •Pancras • charas • Tatras • disastrous •ferrous • leprous • ambidextrous •Carreras, mayoress •scabrous •cirrus, Pyrrhus •chivalrous •citrous, citrus •ludicrous • tenebrous •Cyrus, Epirus, papyrus, virus •fibrous • hydrous • Cyprus •retrovirus • monstrous •brachiosaurus, brontosaurus, canorous, chorus, Epidaurus, Horus, megalosaurus, pelorus, porous, sorus, stegosaurus, Taurus, thesaurus, torus, tyrannosaurus •walrus •ochrous (US ocherous) •cumbrous • wondrous • lustrous •Algeciras, Severus •desirous •Arcturus, Epicurus, Honduras •barbarous • tuberous • slumberous •Cerberus • rapturous •lecherous, treacherous •torturous • vulturous • Pandarus •slanderous • ponderous •malodorous, odorous •thunderous • murderous •carboniferous, coniferous, cruciferous, melliferous, odoriferous, pestiferous, somniferous, splendiferous, umbelliferous, vociferous •phosphorous, phosphorus •sulphurous (US sulfurous) •Anaxagoras, Pythagorasclangorous, languorous •rigorous, vigorous •dangerous • verdurous •cankerous, cantankerous, rancorous •decorous • Icarus • valorous •dolorous • idolatrous •amorous, clamorous, glamorous •timorous •humerus, humorous, numerous •murmurous • generous • sonorous •onerous • obstreperous • Hesperus •vaporous • viviparous • viperous •Bosporus, prosperous •stuporous • cancerous •Monoceros, rhinoceros •sorcerous • adventurous • Tartarus •nectarous • dexterous • traitorous •preposterous • slaughterous •boisterous, roisterous •uterus • adulterous • stertorous •cadaverous • feverous •carnivorous, herbivorous, insectivorous, omnivorous •Lazarus

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"tyrannosaurus." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"tyrannosaurus." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O233-tyrannosaurus.html

"tyrannosaurus." Oxford Dictionary of Rhymes. 2007. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-tyrannosaurus.html

Learn more about citation styles

Free newspaper and magazine articles

The heterodonty of Albertosaurus sarcophagus and Tyrannosaurus rex:...
Magazine article from: Canadian Journal of Earth Sciences; 9/1/2010
Tyrannosaurus Drip.(Brief article)(Children's review)(Book review)
Magazine article from: NATE Classroom; 3/22/2008
'Tyrannosaurus Rex was a cannibal'.(Environment)
Newspaper article from: Manila Bulletin; 11/8/2010
Tyrannosaurus images
Tyrannosaurus. (Image by Peng, GFDL)