e·chi·noid 
(ĭ-kīnoid′)
(ĭ-kīnoid′)n.
An echinoderm of the class Echinoidea, which includes the sand dollars and sea urchins.
| 单词 | echinoid |
| 释义 | e·chi·noid (ĭ-kīnoid′)n. An echinoderm of the class Echinoidea, which includes the sand dollars and sea urchins. |
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