
1) Actiniaria 2) Animal order 3) Order actinaria 4) Order actiniaria
Found on
https://www.crosswordclues.com/clue/actinaria

• (n. pl.) A large division of Anthozoa, including those which have simple tentacles and do not form stony corals. Sometimes, in a wider sense, applied to all the Anthozoa, expert the Alcyonaria, whether forming corals or not.
Found on
http://thinkexist.com/dictionary/meaning/actinaria/
Ac`ti·na'ri·a noun plural [ New Latin , from Greek ..., ..., ray.]
(Zoology) A large division of Anthozoa, including those which have simple tentacles and do not form stony corals. Sometimes, in a wider sense, applied to all the Anthozoa, expert the Alcyonaria, whether forming corals or not...
Found on
http://www.encyclo.co.uk/webster/A/23
No exact match found.