Definitions of actinozoan
  1. noun
    sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
    synonyms: anthozoan
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    anemone, sea anemone
    marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton
    sea pen
    fleshy featherlike warm-water colonies
    marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs
    actinia, actinian, actiniarian
    any sea anemone or related animal
    gorgonian, gorgonian coral
    corals having a horny or calcareous branching skeleton
    madrepore, madriporian coral, stony coral
    corals having calcareous skeletons aggregations of which form reefs and islands
    type of:
    cnidarian, coelenterate
    radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
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