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Related to tyrannosaurus: Tyrannosaurus bataar
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.
(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.
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|Noun||1.||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|
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
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