English > echinoderm: 1 sense > noun 1, animal| Meaning | marine invertebrates with tube feet and five-part radially symmetrical bodies. |
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| Member of | Echinodermata, phylum Echinodermata | radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers |
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| Parts | ambulacrum | One of the five areas on the undersurface of an echinoderm on which the tube feet are located |
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| tube foot | tentacular tubular process of most echinoderms (starfish and sea urchins and holothurians) having a sucker at the end and used for e.g. locomotion and respiration |
| water vascular system | System of fluid-filled tubes used by echinoderms in locomotion and feeding and respiration |
| Narrower | basket star, basket fish | Any starfish-like animal of the genera ... / genera Euryale or Astrophyton or Gorgonocephalus having slender complexly branched interlacing arms radiating from a central disc |
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| brittle star, brittle-star, serpent star | An animal resembling a starfish with fragile whiplike arms radiating from a small central disc |
| crinoid | Primitive echinoderms having five or more feathery arms radiating from a central disk |
| sea cucumber, holothurian | echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet |
| sea urchin | shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells |
| starfish, sea star | echinoderms characterized by five arms extending from a central disk |
| Broader | invertebrate | Any animal lacking a backbone or notochord |
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| Spanish | echinodermata, equinodermo, equinodermos |
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| Catalan | equinoderm |
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