Definitions for tyrannosaurus rex
tyran·nosaurus rex

Princeton's WordNetRate this definition:1.0 / 1 vote

1. tyrannosaur, tyrannosaurus, Tyrannosaurus rexnoun

   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

WiktionaryRate this definition:2.3 / 3 votes

1. Tyrannosaurus rexnoun

   a giant carnivorous theropod dinosaur from the Cretaceous period

WikipediaRate this definition:0.0 / 0 votes

1. Tyrannosaurus Rex

   Tyrannosaurus is a genus of large theropod dinosaur. The species Tyrannosaurus rex (rex meaning "king" in Latin), often called T. rex or colloquially T-Rex, is one of the best represented theropods. It lived throughout what is now western North America, on what was then an island continent known as Laramidia. Tyrannosaurus had a much wider range than other tyrannosaurids. Fossils are found in a variety of rock formations dating to the Maastrichtian age of the Upper Cretaceous period, 68 to 66 million years ago. It was the last known member of the tyrannosaurids and among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event. Like other tyrannosaurids, Tyrannosaurus was a bipedal carnivore with a massive skull balanced by a long, heavy tail. Relative to its large and powerful hind limbs, the forelimbs of Tyrannosaurus were short but unusually powerful for their size, and they had two clawed digits. The most complete specimen measures up to 12.3–12.4 m (40.4–40.7 ft) in length; however, according to most modern estimates, T. rex could grow to lengths of over 12.4 m (40.7 ft), up to 3.66–3.96 m (12–13 ft) tall at the hips, and 8.87 metric tons (9.78 short tons) in body mass. Although other theropods rivaled or exceeded Tyrannosaurus rex in size, it is still among the largest known land predators and is estimated to have exerted the strongest bite force among all terrestrial animals. By far the largest carnivore in its environment, Tyrannosaurus rex was most likely an apex predator, preying upon hadrosaurs, juvenile armored herbivores like ceratopsians and ankylosaurs, and possibly sauropods. Some experts have suggested the dinosaur was primarily a scavenger. The question of whether Tyrannosaurus was an apex predator or a pure scavenger was among the longest debates in paleontology. Most paleontologists today accept that Tyrannosaurus was both an active predator and a scavenger. Specimens of Tyrannosaurus rex include some that are nearly complete skeletons. Soft tissue and proteins have been reported in at least one of these specimens. The abundance of fossil material has allowed significant research into many aspects of its biology, including its life history and biomechanics. The feeding habits, physiology, and potential speed of Tyrannosaurus rex are a few subjects of debate. Its taxonomy is also controversial, as some scientists consider Tarbosaurus bataar from Asia to be a second Tyrannosaurus species, while others maintain Tarbosaurus is a separate genus. Several other genera of North American tyrannosaurids have also been synonymized with Tyrannosaurus. As the archetypal theropod, Tyrannosaurus has been one of the best-known dinosaurs since the early 20th century and has been featured in film, advertising, postal stamps, and many other media.

ChatGPTRate this definition:0.0 / 0 votes

1. tyrannosaurus rex

   The Tyrannosaurus Rex, often shortened to T. Rex, was a large carnivorous dinosaur that lived during the late Cretaceous period, around 70 to 65 million years ago. It possessed a large skull, a short but muscular neck, two short but powerful front limbs, and strong hind legs that allowed for bipedal locomotion. The T. Rex is known for its long, pointed teeth which could reach up to 12 inches in length. Despite its image in popular culture as an apex predator, there is some debate among paleontologists whether Tyrannosaurus Rex was a predator or scavenger. It is one of the most famous and well-studied dinosaurs and is known to have been one of the last dinosaurs to exist before the Cretaceous-Tertiary mass extinction event.

Editors ContributionRate this definition:0.0 / 0 votes

1. Tyrannosaurus rex

   Tyrant lizard king

   
   

   Submitted by thebigalkm on December 28, 2020  

Suggested ResourcesRate this definition:1.0 / 1 vote

1. tyrannosaurus rex

   Song lyrics by tyrannosaurus rex -- Explore a large variety of song lyrics performed by tyrannosaurus rex on the Lyrics.com website.

Matched Categories

1. • Theropod Dinosaur

How to pronounce tyrannosaurus rex?

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Numerology

1. Chaldean Numerology

   The numerical value of tyrannosaurus rex in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of tyrannosaurus rex in Pythagorean Numerology is: 1

Examples of tyrannosaurus rex in a Sentence

1. David Burnham:

   The teeth suggest it’s a Tyrannosaurus rex; however, there is still more work to be done, because a young T. rex is so rare, there are only a few that have been found over the years, so it’s difficult to discern what are changes due to growth or if the differences in the bones reflect different species.

2. Peter Larson:

   Ever since we created that little museum on our parents' ranch, it's always been our dream to have a museum here in Hill City (South Dakota), and finding Sue, the Tyrannosaurus Rex -- here's the anchor for the museum.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=tyrannosaurus rex
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Tyrannosaurus_Rex
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Tyrannosaurus_Rex
4. ^ ChatGPT
   https://chat.openai.com