actinozoa Meaning, Definition & Usage

  1. noun a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed
    class Actinozoa; Anthozoa; class Anthozoa.
  2. noun sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
    anthozoan; actinozoan.

WordNet

Ac"ti*no*zo"a noun plural
Etymology
Gr. , , ray + animal.
Definitions
  1. (Zoöl.) A group of Coelenterata, comprising the Anthozoa Ctenophora. The sea anemone, or actinia, is a familiar example.

Webster 1913