Source : Webster's Revised Unabridged Dictionary (1913)

Anthozoa \An`tho*zo"a\, n. pl. [NL., fr. Gr. 'a`nqos flower + ?
   animal.] (Zo["o]l.)
   The class of the C[oe]lenterata which includes the corals and
   sea anemones. The three principal groups or orders are
   {Acyonaria}, {Actinaria}, and {Madreporaria}.