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 For example, the plant and insect traces inside confirm what many paleontologists already hypothesized: that some hadrosaurs, including the 9 meter-long Prosaurolophus, fed on conifers near coastal floodplains. John Pickrell, Science | AAAS, "‘Remarkable’ fossil features an insect trapped in amber, stuck to a dinosaur jaw," 29 Nov. 2019 Richard Antonucci of Boca Raton examined a display of real fossils, including a hadrosaur tibia from 75 million years ago that was discovered in Montana. Lois K. Solomon, sun-sentinel.com, "They’re not extinct in West Palm Beach: Dinosaur theme park draws thousands | PHOTOS," 17 Aug. 2019 Collectively, the sequences showed the purported hadrosaur collagen was more closely related to T. rex and birds than to modern reptiles. Robert F. Service, Science | AAAS, "‘I don’t care what they say about me’: Paleontologist stares down critics in her hunt for dinosaur proteins," 13 Sep. 2017 How to hunt proteins in dinosaur fossils Mary Schweitzer and her colleagues first remove minerals from fossils such as a hadrosaur femur, leaving organic material behind. Robert F. Service, Science | AAAS, "‘I don’t care what they say about me’: Paleontologist stares down critics in her hunt for dinosaur proteins," 13 Sep. 2017 Tyrannosaurs, hadrosaurs, ankylosaurs, ostrich mimic dinosaurs and more have turned up, but no horned dinosaurs. Charles P. Pierce, Esquire, "Nothing is Real in Trump's America Unless the Cameras Are Rolling," 23 June 2017 Tyrannosaurs, hadrosaurs, ankylosaurs, ostrich mimic dinosaurs and more have turned up, but no horned dinosaurs. Charles P. Pierce, Esquire, "Nothing is Real in Trump's America Unless the Cameras Are Rolling," 23 June 2017 Tyrannosaurs, hadrosaurs, ankylosaurs, ostrich mimic dinosaurs and more have turned up, but no horned dinosaurs. Brian Switek, Scientific American Blog Network, "When Horned Dinosaurs Traveled East," 19 June 2017 Tyrannosaurs, hadrosaurs, ankylosaurs, ostrich mimic dinosaurs and more have turned up, but no horned dinosaurs. Charles P. Pierce, Esquire, "Nothing is Real in Trump's America Unless the Cameras Are Rolling," 23 June 2017

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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Time Traveler for hadrosaur

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The first known use of hadrosaur was in 1877

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Statistics for hadrosaur

Last Updated

10 Dec 2019

Cite this Entry

“Hadrosaur.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/hadrosaur. Accessed 19 January 2020.

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Rhyming Dictionary: Words that rhyme with hadrosaur

Britannica.com: Encyclopedia article about hadrosaur

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