hadrosaur

noun
had·​ro·​saur | \ ˈha-drə-ˌsȯr How to pronounce hadrosaur (audio) \

Definition of hadrosaur

: any of a genus (Hadrosaurus) or family (Hadrosauridae) of mainly bipedal dinosaurs of the Late Cretaceous that have the forward part of the jaws toothless and flattened into a beak-like snout and the back part of the jaws filled with rows of numerous small, grinding teeth and that often have a solid or hollow bony crest on the skull : duck-billed dinosaur … the hadrosaurs evolved into some 21 different species during their 20 million-year stint on earth …— Virginia Morell

Examples of hadrosaur in a Sentence

Recent Examples on the Web In a Cretaceous Research study, paleontologists described a new species of hadrosaur found in Morocco. Riley Black, Smithsonian Magazine, "The Top Ten Dinosaur Discoveries of 2020," 23 Dec. 2020 Others turn out to be familiar—a duckbill dinosaur previously thought to be a new species has turned out to be Edmontosaurus, a wide-ranging hadrosaur found elsewhere. Riley Black, Smithsonian Magazine, "How Dinosaurs Thrived in the Snow," 3 Dec. 2020 In March, a study was published that looked at the fossilized teeth of a hadrosaur and concluded that its journeys were short, roughly 50 miles. Chris Ciaccia, Fox News, "125M-year-old dinosaur trapped by a volcanic eruption found in China," 20 Sep. 2020 In March, a study was published that looked at the fossilized teeth of a hadrosaur and concluded that its journeys were short, roughly 50 miles. Chris Ciaccia, Fox News, "125M-year-old dinosaur trapped by a volcanic eruption found in China," 20 Sep. 2020 In March, a study was published that looked at the fossilized teeth of a hadrosaur and concluded that its journeys were short, roughly 50 miles. Chris Ciaccia, Fox News, "125M-year-old dinosaur trapped by a volcanic eruption found in China," 20 Sep. 2020 In March, a study was published that looked at the fossilized teeth of a hadrosaur and concluded that its journeys were short, roughly 50 miles. Chris Ciaccia, Fox News, "125M-year-old dinosaur trapped by a volcanic eruption found in China," 20 Sep. 2020 The crew has been working at the site for about two months and uncovered between 30 and 50 bones that came from a single young hadrosaur that was about three or four years old, according to the statement. David Williams, CNN, "A 12-year-old found a 69 million-year-old dinosaur fossil while hiking with his dad," 16 Oct. 2020 In March, a study was published that looked at the fossilized teeth of a hadrosaur and concluded that its journeys were short, roughly 50 miles. Chris Ciaccia, Fox News, "125M-year-old dinosaur trapped by a volcanic eruption found in China," 20 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hadrosaur.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hadrosaur

1877, in the meaning defined above

History and Etymology for hadrosaur

New Latin Hadrosaurus, genus name, from Greek hadros thick, bulky + sauros lizard

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The first known use of hadrosaur was in 1877

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Cite this Entry

“Hadrosaur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hadrosaur. Accessed 17 Apr. 2021.

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