echinoderm: Meaning and Definition of
Pronunciation: (i-kī'nu-dûrm", ek'u-nu-), [key]
- 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.
- echinoderm (Thesaurus)
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