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

Extensive analysis of the tyrannosaur skeleton preserved in this fossil has settled this long debate. — Mrigakshi Dixit, Interesting Engineering, 30 Oct. 2025

That's an arena of future research and discovery, along with fleshing out the varied biologies and behaviors of this growing group of tyrannosaurs. — Ari Daniel, NPR, 30 Oct. 2025

The leg bone uncovered in New Mexico belongs to an unusually large tyrannosaur—the group of dinosaurs that includes the mightyTyrannosaurus rex. — Laura Baisas, Popular Science, 12 Mar. 2026

However, not every smaller tyrannosaur skeleton should be classified as Nanotyrannus, according to Brusatte. — Katie Hunt, CNN Money, 30 Oct. 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
• covenantor
• forevermore
• hereinbefore
• kinetochore
• kwashiorkor
• abhor
• abor
• adore
• afore
• ardour
• ashore

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