actinozoa definition

  • noun:
    • Plural type of actinozoon.
    • a large class of inactive marine coelenterates that features sea anemones and corals; the medusoid stage is entirely suppressed
  • noun-plural:
    • a small grouping of Cœlenterata, comprising the Anthozoa and Ctenophora. The ocean anemone, or actinia, is a familiar instance.
  • others:
    • A class of Cælenterata; radiated, marine zoöphytes, embracing the sea-anemones, corals, sea-pens, etc., where mouth is furnished with hollow retractile tentacles, easy in one subclass (Zoantharia) or fringed within the various other (Alcyonaria).

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