: a genus (the type of the family Birkeniidae of the order Anaspida) of Upper Silurian ostracoderms having no cephalic armor and having the body covered with small scales

Word History


New Latin, from Birkenhead Burn, Lanark county, Scotland + New Latin -ia

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 Birkenia

Cite this Entry

“Birkenia.” Dictionary, Merriam-Webster, Accessed 30 Nov. 2023.

Love words? Need even more definitions?

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