Definition of Echinodermata in English:
A phylum of marine invertebrates that includes starfishes, sea urchins, brittlestars, crinoids, and sea cucumbers. They have fivefold radial symmetry, a calcareous skeleton, and tube feet operated by fluid pressure.
- The superphylum Deuterostomia contains the diverse phyla Chordata and Echinodermata and the minor phyla Hemichordata and Urochordata.
- Sea cucumbers, invertebrate animals of the phylum Echinodermata, might hold out some hope for the afflicted.
- Crinoids are a class of the phylum Echinodermata, which includes living starfishes, sand dollars and sea urchins, as well as approximately six hundred living species of crinoids.
Definition of Echinodermata in:
- British & World English dictionary
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