: a genus (the type of the family Pennaridae) comprising gymnoblastic hydroids in which the hydranth has a basal whorl of ten to twelve tentacles with a number of short knobbed tentacles on the hypostome

Word History


New Latin, perhaps from Latin penna feather, wing + New Latin -aria

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 Pennaria

Cite this Entry

“Pennaria.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2024.

Love words? Need even more definitions?

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