单词 | Unionidae |
释义 | Unio /ūˈni-ō/nounThe pearl mussel genus of freshwater molluscs, giving name to the family Unionidae /ū-ni-onˈi-dē/ ORIGIN: L ūniō, -ōnis, prob from ūnus one; cf solitaire as applied to a diamond set by itself union /ūnˈyən/ noun (Shakespeare) A fine large pearl, a unique or single pearl |
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