Definitions

from The Century Dictionary.

  • An order of actinozoan corals, or, as some hold, a subclass of coralligenous Actinozoa, distinguished in this use from Zoantharia, the other subclass of Actinozoa (which contains the sea-anemones, etc.), by having pinnately fringed instead of simple tentacles, arranged around the mouth like the rays of a starfish, whence the alternative name Asteroida.
  • A subclass of Anthozoa, containing the orders Stolonifera, Alcyonacea, Pseudaxonia, Axifera, Stelechotokea, and Cœnothecalia.

from the GNU version of the Collaborative International Dictionary of English.

  • proper noun plural (Zoöl.) One of the orders of Anthozoa. It includes the Alcyonacea, Pennatulacea, and Gorgonacea.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • proper noun A taxonomic subclass within the class Anthozoasedentary colonial cnidarians.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun corals and sea anemones having eight branches

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Alcyonium +‎ -aria

Examples

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