Actiniaria

plural noun Ac·tin·i·ar·ia \¦ak-ˌti-nē-¦a-rē-ə, -ˈer-ē-\

Definition of Actiniaria

  1. :  an order or suborder of Anthozoa (subclass Zoantharia) comprising the sea anemones which differ from the corals in forming no hard skeleton and in existing as separate individuals

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 actiniaria

borrowed from New Latin, from Actinia actinia + -aria 2-aria


First Known Use: 1856


Seen and Heard

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

WORD OF THE DAY

a trip made at another's expense

Get Word of the Day daily email!