hadrosaurid

noun

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

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near hadrosaurid

Cite this Entry

“Hadrosaurid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hadrosaurid. Accessed 1 Feb. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Name That Thing

You know what it looks like… but what is it called?

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY