variants
or less commonly T-Rex
plural T. rexes also T-Rexes
: tyrannosaurus rex
Though no one can actually time a running dinosaur with a stopwatch, scientists still have some idea of how fast T. rex and his companions ran.—
Lilian T. Hoffecker
Lilian T. HoffeckerWe don't know if T. rex hunted alone or in packs, if it pursued live prey or merely scavenged.—Discover Magazine
Discover MagazineSpielberg's dinosaurs had teeth prominently and terrifyingly on constant display, much like a modern crocodile. [Auburn University professor Thomas] Cullen and his team, however, have shown instead that the T-Rex … had lips that covered their teeth much like a modern monitor lizard.—John West
John WestT. rexes were among the largest meat-eaters on Earth during their reign … 144 million years ago. They had to eat a lot, and often, to support their enormous bodies.—John Johnson Jr.
John Johnson Jr.Examples of T. rex in a Sentence
Recent Examples on the Web
Dinosaurs have long held our fascination, but the T. rex in particular has always one of the most popular species.
—Nicole Hoey, Robb Report, 28 May 2026
Almost anyone, regardless of age or background, understands the appeal of a T. rex skeleton towering over a room.
—Daniel Cassady, ARTnews.com, 28 May 2026
The skull drained resources from the rest of the T. rex's body, becoming the species' primary weapon of focus, as its arms became less useful, Charlie Roger Scherer, the study's lead author and a doctoral student of Earth sciences at University College London, told the outlet.
—Escher Walcott, PEOPLE, 26 May 2026
Other than in tyrannosaurids, the group that includes T. rex and its cousins, researchers found the correlation between large, strong skulls and small forelimbs in four other dinosaur groups — ceratosaurids, megalosaurids, abelisaurids and carcharodontosaurids — all large bipedal carnivores.
—Jacopo Prisco, CNN Money, 25 May 2026
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Nicole Hoey, Robb Report, 28 May 2026
Almost anyone, regardless of age or background, understands the appeal of a T. rex skeleton towering over a room.
—Daniel Cassady, ARTnews.com, 28 May 2026
The skull drained resources from the rest of the T. rex's body, becoming the species' primary weapon of focus, as its arms became less useful, Charlie Roger Scherer, the study's lead author and a doctoral student of Earth sciences at University College London, told the outlet.
—Escher Walcott, PEOPLE, 26 May 2026
Other than in tyrannosaurids, the group that includes T. rex and its cousins, researchers found the correlation between large, strong skulls and small forelimbs in four other dinosaur groups — ceratosaurids, megalosaurids, abelisaurids and carcharodontosaurids — all large bipedal carnivores.
—Jacopo Prisco, CNN Money, 25 May 2026
See All Example Sentences for T. rex
Cite this Entry
“T. rex.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/T.%20rex. Accessed 15 Jun. 2026.
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T. rex
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