: a genus of duck-billed dinosaurs (suborder Ornithopoda) having a thin domed bony crest capping the skull and found in Upper Cretaceous formations of western North America

Word History


New Latin, from corytho- (from Late Greek korythos crested, from Greek koryth-, korys helmet) + -saurus; akin to Latin cornu horn

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 Corythosaurus

Cite this Entry

“Corythosaurus.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

Love words? Need even more definitions?

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