hadrosaur
Americannoun
noun
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Any of various medium-sized to large dinosaurs of the group Hadrosauroidea of the Cretaceous Period. Hadrosaurs had a duck-like bill and a mouth containing many series of rough grinding teeth for chewing tough plants. They walked on two legs or on all fours and had hoofed feet. Many hadrosaurs bore hollow crests on their skulls. They were the last and largest ornithopod dinosaurs.
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Also called duck-billed dinosaur
Other Word Forms
Etymology
Origin of hadrosaur
< New Latin Hadrosaurus (1858) genus name, equivalent to Greek hadr ( ós ) thick, bulky + -o- -o- + saûros -saur
Vocabulary lists containing hadrosaur
Paleontology: Dinosaurs - Introductory
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Paleontology: Dinosaurs - Middle School and High School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“Another hadrosaur toe, another triceratops vertebra. Other than statistical appearance in the formation, there’s zero scientific value.”
From New York Times ● Jul. 17, 2023
To fossilize the tissue so well, the hadrosaur corpse would have had to have been covered up quickly.
From Washington Times ● Sep. 14, 2022
It preserves tracks of about 10 species, including dinosaurs such as the hadrosaur and a feathered dromaeosaur, as well as crocodiles and birds.
From Science Magazine ● Jan. 31, 2022
“At the hadrosaur site, we were digging under what we had already plastered and taken away when another volunteer and I ended up finding a rib,” she said.
From Seattle Times ● Oct. 24, 2021
“They’ve never found a hadrosaur in this area before,” she said.
From "The Miseducation of Cameron Post" by emily m. danforth
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
