sea urchin
n.
Any of various echinoderms of the class Echinoidea, having a soft body enclosed in a rounded, radially symmetrical, calcareous skeleton covered with long spines.
sea urchinwhite sea urchin
Gracilechinus acutus
| 单词 | sea urchin |
| 释义 | sea urchin n. Any of various echinoderms of the class Echinoidea, having a soft body enclosed in a rounded, radially symmetrical, calcareous skeleton covered with long spines. sea urchinwhite sea urchin Gracilechinus acutus |
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