tyrannosaur

noun

ty·​ran·​no·​saur tə-ˈra-nə-ˌsȯr 

tī-

plural tyrannosaurs

1

: a massive North American tyrannosaurid dinosaur (Tyrannosaurus rex) : tyrannosaurus rex

2

: tyrannosaurid

Examples of tyrannosaur in a Sentence

Recent Examples on the Web

Rather than being just one main lineage of tyrannosaurs before T. rex, at least three roamed the Earth. —Riley Black, Smithsonian Magazine, 16 Dec. 2024

Predators everywhere Finding traces of tyrannosaurs in this area is particularly notable. —Laura Baisas, Popular Science, 5 Dec. 2024

This early relative of T. rex had a distinctive crest on its head, offering insight into the evolutionary adaptations of early tyrannosaurs. —Scott Travers, Forbes, 21 Mar. 2025

Fossil Location The tyrannosaur teeth in the Ashdown Brickworks turned out to be fortuitous find, as researchers say the dinosaur group hadn’t previously been identified in sediments of this age and region. —Jack Knudson, Discover Magazine, 1 Jan. 2025

Word History

Etymology

New Latin Tyrannosaurus, from Greek tyrannos tyrant + sauros lizard

First Known Use

1905, in the meaning defined at sense 1

Rhymes for tyrannosaur

• conquistador
• forevermore
• hereinbefore
• kinetochore
• kwashiorkor
• abhor
• abor
• adore
• afore
• ardour
• ashore
• backdoor

Kids Definition

tyrannosaur

noun

ty·​ran·​no·​saur tə-ˈran-ə-ˌsȯ(ə)r 

tī-

: a very large North American flesh-eating dinosaur of the Cretaceous period that had small forelegs and walked on its hind legs