actinia

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ac·tin·i·an

(ăk-tĭn′ē-ən) also ac·tin·i·a (-ə)

n. pl. ac·tin·i·ans also ac·tin·i·ae (-ē-ē′)

A sea anemone.

[New Latin Actīnia, genus name, from Greek aktīs, aktīn-, ray; see actino-.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

actinia

(ækˈtɪnɪə)

n, pl -tiniae (-ˈtɪnɪˌiː) or -tinias

(Animals) any sea anemone of the genus Actinia, which are common in rock pools. Also called: actinian

[C18: New Latin, literally: things having a radial structure. See actino-, -ia]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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Noun	1.	Actinia - a genus of sea anemone common in rock pools genus Actinia coelenterate genus - a genus of coelenterates Actinaria, Actiniaria, order Actinaria, order Actiniaria - sea anemones
	2.	actinia - any sea anemone or related animal actinian, actiniarian Actinaria, Actiniaria, order Actinaria, order Actiniaria - sea anemones sea anemone, anemone - marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton

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In the midst of this inextricable mass of plants and sea weed, I noticed some charming pink halcyons and actiniae, with their long tentacles trailing after them, and medusae, green, red, and blue.

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Its principal goal is to constitute the applied catalogue of GFP-like proteins obtained from various non-bio-luminescent species--soft and madreporite corals, comb-jellies, actiniae etc.

Genetic engineering and contemporary art: structural aspects and the problems

The bottom was absolutely hidden by a continuous series of corals, sponges, actiniae, and other marine productions, of magnificent dimensions, varied forms, and brilliant colors....