单词 | Echinodermata |
释义 | Echinodermata [´ek·ǝ·nǝ`dǝr·mǝd·ǝ] INVERTEBRATE ZOOLOGY A phylum of exclusively marine coelomate animals distinguished from all others by an internal skeleton composed of calcite plates, and a water-vascular system to serve the needs of locomotion, respiration, nutrition, or perception. |
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