| 单词 | echinoid |
| 释义 | echinoid /i kuy"noyd, ek"euh noyd'/, adj. 1. belonging or pertaining to the class Echinoidea, comprising mainly sea urchins and sand dollars. n. 2. any echinoderm of the Echinoidea. [1850-55; < NL Echinoidea; see ECHINUS, -OIDEA] |
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