: a genus (order Aglaspida) of extinct Cambrian arthropods thought to be related to the modern horseshoe crabs

Word History


borrowed from New Latin, from Greek aglaís "splendid, fine, bright" + New Latin -aspis -aspis

First Known Use

1861, in the meaning defined above

Time Traveler
The first known use of Aglaspis was in 1861

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 Aglaspis

Cite this Entry

“Aglaspis.” Dictionary, Merriam-Webster, Accessed 23 Jul. 2024.

Love words? Need even more definitions?

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