from the GNU version of the Collaborative International Dictionary of English.

  • noun Any member of the genus Hadrosaurus or family Hadrosauridae, an extinct family of heavy bipedal partly aquatic dinosaurs with duck-billed skull and webbed feet; of the Upper Cretaceous in North America.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun paleontology Any ornithopod dinosaur of the family Hadrosauridae.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic


from The American Heritage® Dictionary of the English Language, 4th Edition

New Latin Hadrosaurus, genus name : Greek hadros, thick; see hadron + sauros, lizard.

from Wiktionary, Creative Commons Attribution/Share-Alike License

Back-formation from Hadrosauridae, from the type genus Hadrosaurus, which in turn was derived from Ancient Greek ἁδρός (hadros, "strong") + σάυρα (saura, "lizard").


  • MANNING: A hadrosaur is a distinct group of ormafiskin (ph), bird-hip dinosaurs that were quite common at the end of the cretaceous, which was literally the last gasp of the age of dinosaurs.

    CNN Transcript Dec 7, 2007

  • (Dalla Vecchia 2009) (throughout this article, I'll be using 'hadrosaur' as a vernacular term for both Hadrosauridae, and for Hadrosauroidea),

    ScienceBlogs Channel : Life Science

  • I didn't need to see Rick Marshall pour hadrosaur urine all over himself.

    Takashi model

  • March 11th, 2010 at 1: 56 pm tombaker says: mary and joseph rode in to bethlehem in December of 1878 on a hadrosaur. the rest is history.

    Think Progress » Texas Education Agency Slams Fox News’s Fearmongering About The State’s Social Studies Curriculum Changes

  • Or that the first nearly complete dinosaur skeleton—a hadrosaur—was found in 1858 in New Jersey?


  • Like running into a hadrosaur on your way to the bathroom at


  • In recent years, a team of Mexican and American researchers has been working at a site 13 kilometers (8 miles) from the Rio Grande, where numerous hadrosaur leg bones were found protruding from the ground in 1999.

    Did you know? Dinosaur bones in Mexico

  • This is supported by a find of 34 hadrosaur bones together — “these are not literally an articulated skeleton, but the bones are doubtless from a single animal” — if the bones had been exhumed by a river, they would have been scattered.

    Lost World Evidence! | Impact Lab

  • And I wonder if it'd be possible to use the same method to try and engineer something close to a triceratops, or even a hadrosaur...what would even be the base for that?


  • WP: Paleontologists have unearthed the mineralized soft tissue of a hadrosaur, complete with skin and flesh.

    Waldo Jaquith - Ossified hadrosaur discovered.


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  • How many thick-lizards are there?

    March 17, 2012