Echinoderm meaning
[ih-kahy-nuh-durm, ek-uh-nuh-]
Definitions of echinoderm is:
  • noun echinoderm
    any marine animal of the invertebrate phylum Echinodermata, having a radiating arrangement of parts and a body wall stiffened by calcareous pieces that may protrude as spines and including the starfishes, sea urchins, sea cucumbers, etc.
  • noun echinoderm
    A marine invertebrate of the phylum Echinodermata, such as a starfish, sea urchin, or sea cucumber.
  • noun echinoderm
    any of the marine invertebrate animals constituting the phylum Echinodermata, characterized by tube feet, a calcite body-covering (test), and a five-part symmetrical body. The group includes the starfish, sea urchins, and sea cucumbers