had·​ro·​sau·​rid ˌha-drə-ˈsȯr-əd How to pronounce hadrosaurid (audio)
plural hadrosaurids
: hadrosaur, duck-billed dinosaur
Like ceratopsians, they too had closely packed chewing teeth, but by the time hadrosaurids evolved, the dentition consisted of relatively small teeth that were organized into a complex battery, all the better for grinding up vegetation.David B. Weishampel, Natural History, June 1995
hadrosaurid adjective
… members of the hadrosaurid family apparently nurtured their young. Richard Monastersky, Science News, 22 Oct. 1988

Word History

First Known Use

circa 1893, in the meaning defined above

Time Traveler
The first known use of hadrosaurid was circa 1893

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Cite this Entry

“Hadrosaurid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hadrosaurid. Accessed 25 Jun. 2024.

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