1 of 2

plural noun (1)

: a family (order Hadromerina) of small sponges with monaxon spicules that bore in shells and soft limestone rocks see cliona


2 of 2

plural noun (2)

: a family of naked pteropod mollusks comprising forms intermediate in many characters between typical pteropods and nudibranchs

Word History


Plural noun (1)

New Latin, from Cliona, type genus + -idae

Plural noun (2)

New Latin, from Clione, type genus + -idae

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 clionidae

Cite this Entry

“Clionidae.” Dictionary, Merriam-Webster, Accessed 22 Feb. 2024.

Love words? Need even more definitions?

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