Actinaria
Pronunciation : Ac`ti*na"ri*a
Part of Speech : n. pl.
Etymology : [NL., from Gr. (Zo?l.)
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913