noun Pro·tos·te·ga \prəˈtästəgə\

Definition of Protostega

  1. :  a genus of large marine turtles from the Upper Cretaceous of North America having a carapace and plastron somewhat like those of the leatherback

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of protostega

New Latin, from prot- + Greek stegē roof; akin to Latin tegere to cover — more at thatch

Seen and Heard

What made you want to look up Protostega? Please tell us where you read or heard it (including the quote, if possible).


capable of being understood in two ways

Get Word of the Day daily email!