plural noun An·nu·lo·sa \ˌanyəˈlōsə, -ōzə\

Definition of Annulosa

in some classifications

  1. :  a subkingdom of animals including forms with articulate bodies and a double ventral chain of ganglia and comprising the annelid worms and the arthropods


\-sən, -zən\ noun, plural



\ˈanyəˌlōs\ adjective

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 annulosa

New Latin, from Latin annulus ring + -osa (neuter plural of -osus) -ose

First Known Use: 1821

Seen and Heard

What made you want to look up Annulosa? 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!