Actinozoa \Ac"ti*no*zo"a\, n. pl. [Gr. ?, ?, ray + zw^on animal.] (Zo["o]l.) A group of C[oe]lenterata, comprising the Anthozoa and Ctenophora. The sea anemone, or actinia, is a familiar example.
Actinozoa n : no alternation of generations the medusoid phase being entirely suppressed: sea anemones; corals [syn: {Anthozoa}, {class Anthozoa}, {class Actinozoa}]