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
Example Sentences
Recent Examples on the Web About 85 million years after this stegosaurus fossilized, the last dinosaurs went extinct. 
Corinne Purtill, Los Angeles Times, 19 Aug. 2022 Babies, not to say bad boys, would fall asleep back there, their nodding heads tipped over by the great weight of baby helmets covered in the spikes of a stegosaurus, poking into my back. The New Yorker, 23 May 2022 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 Here, a line of rocks, each the size of a big-man recliner, looks like the back of a stegosaurus dinosaur. Flip Putthoff, Arkansas Online, 21 Dec. 2021 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 One landmark along the way is what some hikers have dubbed the stegosaurus. Flip Putthoff, Arkansas Online, 21 Dec. 2021 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 See More
Corinne Purtill, Los Angeles Times, 19 Aug. 2022 Babies, not to say bad boys, would fall asleep back there, their nodding heads tipped over by the great weight of baby helmets covered in the spikes of a stegosaurus, poking into my back. The New Yorker, 23 May 2022 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 Here, a line of rocks, each the size of a big-man recliner, looks like the back of a stegosaurus dinosaur. Flip Putthoff, Arkansas Online, 21 Dec. 2021 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 One landmark along the way is what some hikers have dubbed the stegosaurus. Flip Putthoff, Arkansas Online, 21 Dec. 2021 The back end, including its tail weapon, seemed similar to a stegosaurus, so the researchers named it stegouros elengassen. Fox News, 3 Dec. 2021 See More Word History
Etymology
New Latin, from Greek stegos roof + sauros lizard — more at thatch
First Known Use
1892, in the meaning defined above
Kids Definition
stegosaurus
noun
stego·sau·rus ˌste-gə-ˈsȯr-əs
: a large plant-eating dinosaur with bony plates along its back and tail and with spikes at the end of the tail