stegosaurus

noun

stego·​sau·​rus ˌste-gə-ˈsȯr-əs 

: any of a genus (Stegosaurus) of stegosaurs known from the Upper Jurassic rocks especially of Colorado and Wyoming

Examples of stegosaurus in a Sentence

Recent Examples on the Web

Finally, below is another cool still from the trailer of also not a stegosaurus. —Tony Maglio, HollywoodReporter, 5 Feb. 2026

Shumway explains that the T. rex, being a Cretaceous species, is actually closer in time to humans than to Jurassic dinosaurs like the stegosaurus. —Yutao Chen, Washington Post, 23 Jan. 2026

Visitors can interact with several dozen moving replicas of dinosaurs ranging from T. rex and stegosaurus to velociraptors along with Jurassic sea giants in a virtual aquarium. —Linda McIntosh, San Diego Union-Tribune, 21 Nov. 2025

The folds of rock turn vertical, knifelike, a stegosaurus spine of giant sandstone plates. —Rowan Jacobsen, Harpers Magazine, 24 Oct. 2025

Word History

Etymology

New Latin, from Greek stegos roof + sauros lizard — more at thatch

First Known Use

1880, in the meaning defined above

Rhymes for stegosaurus

• polyporus
• authorise
• clitoris
• liquorice
• prioress
• pylorus
• thesaurus
• chloris
• chorus
• horus
• lores
• morrice

Kids Definition

stegosaurus

noun

stego·​sau·​rus ˌsteg-ə-ˈsȯr-əs 

: any of a genus of 4-footed plant-eating dinosaurs having bony plates and spikes on the back and tail and whose fossil remains are found in the Upper Jurassic rocks of Colorado and Wyoming