echinoderm (plural echinoderms)

  1. An animal of the phylum Echinodermata, comprising radially symmetric, spiny-skinned marine animals including seastars, sea urchins, sea cucumbers, crinoids, and sand dollars. [from 19th c.]
  • French: échinoderme
  • German: Stachelhäuter
  • Portuguese: equinodermo
  • Russian: иглоко́жее
  • Spanish: equinodermo

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