 echinoderm |
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| 1. | [ noun ] (zoology) marine invertebrates with tube feet and calcite-covered five-part radially symmetrical bodies | |
| Related terms: | invertebrate sea_cucumber sea_urchin starfish brittle_star basket_star crinoid Echinodermata tube_foot ambulacrum water_vascular_system | |
| Similar spelling: |
Echinodermata Echinoidea |
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