plural noun Ae·o·lid·i·dae \ˌē-ə-ˈli-də-ˌdē\

Definition of Aeolididae

  1. :  a family that is made up of nudibranchs that have many nematocysts obtained from the hydroids on which they feed and that is sometimes placed with related families in a superfamily (Aeolidoidea)

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 aeolididae

borrowed from New Latin, from Aeolid-, Aeolis, aeolis + -idae -idae

First Known Use: 1882

Seen and Heard

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


to cast off or become cast off

Get Word of the Day daily email!