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Definitions of echinoderm
  1. noun
    marine invertebrates with tube feet and five-part radially symmetrical bodies
    type of:
Definition that contains echinoderm
  • starfish echinoderms characterized by five arms extending from a central disk
  • sea star echinoderms characterized by five arms extending from a central disk
  • holothurian echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders
  • sea cucumber echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders
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